git.oblomov.eu Git - wine/blob - dlls/quartz/regsvr.c

   1 /*
   2  *      self-registerable dll functions for quartz.dll
   3  *
   4  * Copyright (C) 2003 John K. Hohm
   5  *
   6  * This library is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU Lesser General Public
   8  * License as published by the Free Software Foundation; either
   9  * version 2.1 of the License, or (at your option) any later version.
  10  *
  11  * This library is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * Lesser General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU Lesser General Public
  17  * License along with this library; if not, write to the Free Software
  18  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  19  */
  20
  21 #define NONAMELESSUNION
  22 #define NONAMELESSSTRUCT
  23 #define COBJMACROS
  24 #include <stdarg.h>
  25 #include <string.h>
  26
  27 #include "windef.h"
  28 #include "winbase.h"
  29 #include "winuser.h"
  30 #include "winreg.h"
  31 #include "winerror.h"
  32
  33 #include "ole2.h"
  34 #include "uuids.h"
  35 #include "strmif.h"
  36
  37 #include "wine/debug.h"
  38
  39 WINE_DEFAULT_DEBUG_CHANNEL(quartz);
  40
  41 /*
  42  * Near the bottom of this file are the exported DllRegisterServer and
  43  * DllUnregisterServer, which make all this worthwhile.
  44  */
  45
  46 /***********************************************************************
  47  *              interface for self-registering
  48  */
  49 struct regsvr_interface
  50 {
  51     IID const *iid;             /* NULL for end of list */
  52     LPCSTR name;                /* can be NULL to omit */
  53     IID const *base_iid;        /* can be NULL to omit */
  54     int num_methods;            /* can be <0 to omit */
  55     CLSID const *ps_clsid;      /* can be NULL to omit */
  56     CLSID const *ps_clsid32;    /* can be NULL to omit */
  57 };
  58
  59 static HRESULT register_interfaces(struct regsvr_interface const *list);
  60 static HRESULT unregister_interfaces(struct regsvr_interface const *list);
  61
  62 struct regsvr_coclass
  63 {
  64     CLSID const *clsid;         /* NULL for end of list */
  65     LPCSTR name;                /* can be NULL to omit */
  66     LPCSTR ips;                 /* can be NULL to omit */
  67     LPCSTR ips32;               /* can be NULL to omit */
  68     LPCSTR ips32_tmodel;        /* can be NULL to omit */
  69     LPCSTR progid;              /* can be NULL to omit */
  70     LPCSTR viprogid;            /* can be NULL to omit */
  71     LPCSTR progid_extra;        /* can be NULL to omit */
  72 };
  73
  74 static HRESULT register_coclasses(struct regsvr_coclass const *list);
  75 static HRESULT unregister_coclasses(struct regsvr_coclass const *list);
  76
  77 struct regsvr_mediatype_parsing
  78 {
  79     CLSID const *majortype;     /* NULL for end of list */
  80     CLSID const *subtype;
  81     LPCSTR line[11];            /* NULL for end of list */
  82 };
  83
  84 static HRESULT register_mediatypes_parsing(struct regsvr_mediatype_parsing const *list);
  85 static HRESULT unregister_mediatypes_parsing(struct regsvr_mediatype_parsing const *list);
  86
  87 struct regsvr_mediatype_extension
  88 {
  89     CLSID const *majortype;     /* NULL for end of list */
  90     CLSID const *subtype;
  91     LPCSTR extension;
  92 };
  93
  94 struct mediatype
  95 {
  96     CLSID const *majortype;     /* NULL for end of list */
  97     CLSID const *subtype;
  98     DWORD fourcc;
  99 };
 100
 101 struct pin
 102 {
 103     DWORD flags;                /* 0xFFFFFFFF for end of list */
 104     struct mediatype mediatypes[11];
 105 };
 106
 107 struct regsvr_filter
 108 {
 109     CLSID const *clsid;         /* NULL for end of list */
 110     CLSID const *category;
 111     WCHAR name[50];
 112     DWORD merit;
 113     struct pin pins[11];
 114 };
 115
 116 static HRESULT register_mediatypes_extension(struct regsvr_mediatype_extension const *list);
 117 static HRESULT unregister_mediatypes_extension(struct regsvr_mediatype_extension const *list);
 118
 119 static HRESULT register_filters(struct regsvr_filter const *list);
 120 static HRESULT unregister_filters(struct regsvr_filter const *list);
 121
 122 /***********************************************************************
 123  *              static string constants
 124  */
 125 static WCHAR const interface_keyname[10] = {
 126     'I', 'n', 't', 'e', 'r', 'f', 'a', 'c', 'e', 0 };
 127 static WCHAR const base_ifa_keyname[14] = {
 128     'B', 'a', 's', 'e', 'I', 'n', 't', 'e', 'r', 'f', 'a', 'c',
 129     'e', 0 };
 130 static WCHAR const num_methods_keyname[11] = {
 131     'N', 'u', 'm', 'M', 'e', 't', 'h', 'o', 'd', 's', 0 };
 132 static WCHAR const ps_clsid_keyname[15] = {
 133     'P', 'r', 'o', 'x', 'y', 'S', 't', 'u', 'b', 'C', 'l', 's',
 134     'i', 'd', 0 };
 135 static WCHAR const ps_clsid32_keyname[17] = {
 136     'P', 'r', 'o', 'x', 'y', 'S', 't', 'u', 'b', 'C', 'l', 's',
 137     'i', 'd', '3', '2', 0 };
 138 static WCHAR const clsid_keyname[6] = {
 139     'C', 'L', 'S', 'I', 'D', 0 };
 140 static WCHAR const curver_keyname[7] = {
 141     'C', 'u', 'r', 'V', 'e', 'r', 0 };
 142 static WCHAR const ips_keyname[13] = {
 143     'I', 'n', 'P', 'r', 'o', 'c', 'S', 'e', 'r', 'v', 'e', 'r',
 144     0 };
 145 static WCHAR const ips32_keyname[15] = {
 146     'I', 'n', 'P', 'r', 'o', 'c', 'S', 'e', 'r', 'v', 'e', 'r',
 147     '3', '2', 0 };
 148 static WCHAR const progid_keyname[7] = {
 149     'P', 'r', 'o', 'g', 'I', 'D', 0 };
 150 static WCHAR const viprogid_keyname[25] = {
 151     'V', 'e', 'r', 's', 'i', 'o', 'n', 'I', 'n', 'd', 'e', 'p',
 152     'e', 'n', 'd', 'e', 'n', 't', 'P', 'r', 'o', 'g', 'I', 'D',
 153     0 };
 154 static char const tmodel_valuename[] = "ThreadingModel";
 155 static WCHAR const mediatype_name[11] = {
 156     'M', 'e', 'd', 'i', 'a', ' ', 'T', 'y', 'p', 'e', 0 };
 157 static WCHAR const subtype_valuename[8] = {
 158     'S', 'u', 'b', 't', 'y', 'p', 'e', 0 };
 159 static WCHAR const sourcefilter_valuename[14] = {
 160     'S', 'o', 'u', 'r', 'c', 'e', ' ', 'F', 'i', 'l', 't', 'e', 'r', 0 };
 161 static WCHAR const extensions_keyname[11] = {
 162     'E', 'x', 't', 'e', 'n', 's', 'i', 'o', 'n', 's', 0 };
 163
 164 /***********************************************************************
 165  *              static helper functions
 166  */
 167 static LONG register_key_guid(HKEY base, WCHAR const *name, GUID const *guid);
 168 static LONG register_key_defvalueW(HKEY base, WCHAR const *name,
 169                                    WCHAR const *value);
 170 static LONG register_key_defvalueA(HKEY base, WCHAR const *name,
 171                                    char const *value);
 172 static LONG register_progid(WCHAR const *clsid,
 173                             char const *progid, char const *curver_progid,
 174                             char const *name, char const *extra);
 175 static LONG recursive_delete_key(HKEY key);
 176 static LONG recursive_delete_keyA(HKEY base, char const *name);
 177 static LONG recursive_delete_keyW(HKEY base, WCHAR const *name);
 178
 179 /***********************************************************************
 180  *              register_interfaces
 181  */
 182 static HRESULT register_interfaces(struct regsvr_interface const *list)
 183 {
 184     LONG res = ERROR_SUCCESS;
 185     HKEY interface_key;
 186
 187     res = RegCreateKeyExW(HKEY_CLASSES_ROOT, interface_keyname, 0, NULL, 0,
 188                           KEY_READ | KEY_WRITE, NULL, &interface_key, NULL);
 189     if (res != ERROR_SUCCESS) goto error_return;
 190
 191     for (; res == ERROR_SUCCESS && list->iid; ++list) {
 192         WCHAR buf[39];
 193         HKEY iid_key;
 194
 195         StringFromGUID2(list->iid, buf, 39);
 196         res = RegCreateKeyExW(interface_key, buf, 0, NULL, 0,
 197                               KEY_READ | KEY_WRITE, NULL, &iid_key, NULL);
 198         if (res != ERROR_SUCCESS) goto error_close_interface_key;
 199
 200         if (list->name) {
 201             res = RegSetValueExA(iid_key, NULL, 0, REG_SZ,
 202                                  (CONST BYTE*)(list->name),
 203                                  strlen(list->name) + 1);
 204             if (res != ERROR_SUCCESS) goto error_close_iid_key;
 205         }
 206
 207         if (list->base_iid) {
 208             res = register_key_guid(iid_key, base_ifa_keyname, list->base_iid);
 209             if (res != ERROR_SUCCESS) goto error_close_iid_key;
 210         }
 211
 212         if (0 <= list->num_methods) {
 213             static WCHAR const fmt[3] = { '%', 'd', 0 };
 214             HKEY key;
 215
 216             res = RegCreateKeyExW(iid_key, num_methods_keyname, 0, NULL, 0,
 217                                   KEY_READ | KEY_WRITE, NULL, &key, NULL);
 218             if (res != ERROR_SUCCESS) goto error_close_iid_key;
 219
 220             wsprintfW(buf, fmt, list->num_methods);
 221             res = RegSetValueExW(key, NULL, 0, REG_SZ,
 222                                  (CONST BYTE*)buf,
 223                                  (lstrlenW(buf) + 1) * sizeof(WCHAR));
 224             RegCloseKey(key);
 225
 226             if (res != ERROR_SUCCESS) goto error_close_iid_key;
 227         }
 228
 229         if (list->ps_clsid) {
 230             res = register_key_guid(iid_key, ps_clsid_keyname, list->ps_clsid);
 231             if (res != ERROR_SUCCESS) goto error_close_iid_key;
 232         }
 233
 234         if (list->ps_clsid32) {
 235             res = register_key_guid(iid_key, ps_clsid32_keyname, list->ps_clsid32);
 236             if (res != ERROR_SUCCESS) goto error_close_iid_key;
 237         }
 238
 239     error_close_iid_key:
 240         RegCloseKey(iid_key);
 241     }
 242
 243 error_close_interface_key:
 244     RegCloseKey(interface_key);
 245 error_return:
 246     return res != ERROR_SUCCESS ? HRESULT_FROM_WIN32(res) : S_OK;
 247 }
 248
 249 /***********************************************************************
 250  *              unregister_interfaces
 251  */
 252 static HRESULT unregister_interfaces(struct regsvr_interface const *list)
 253 {
 254     LONG res = ERROR_SUCCESS;
 255     HKEY interface_key;
 256
 257     res = RegOpenKeyExW(HKEY_CLASSES_ROOT, interface_keyname, 0,
 258                         KEY_READ | KEY_WRITE, &interface_key);
 259     if (res == ERROR_FILE_NOT_FOUND) return S_OK;
 260     if (res != ERROR_SUCCESS) goto error_return;
 261
 262     for (; res == ERROR_SUCCESS && list->iid; ++list) {
 263         WCHAR buf[39];
 264
 265         StringFromGUID2(list->iid, buf, 39);
 266         res = recursive_delete_keyW(interface_key, buf);
 267     }
 268
 269     RegCloseKey(interface_key);
 270 error_return:
 271     return res != ERROR_SUCCESS ? HRESULT_FROM_WIN32(res) : S_OK;
 272 }
 273
 274 /***********************************************************************
 275  *              register_coclasses
 276  */
 277 static HRESULT register_coclasses(struct regsvr_coclass const *list)
 278 {
 279     LONG res = ERROR_SUCCESS;
 280     HKEY coclass_key;
 281
 282     res = RegCreateKeyExW(HKEY_CLASSES_ROOT, clsid_keyname, 0, NULL, 0,
 283                           KEY_READ | KEY_WRITE, NULL, &coclass_key, NULL);
 284     if (res != ERROR_SUCCESS) goto error_return;
 285
 286     for (; res == ERROR_SUCCESS && list->clsid; ++list) {
 287         WCHAR buf[39];
 288         HKEY clsid_key;
 289
 290         StringFromGUID2(list->clsid, buf, 39);
 291         res = RegCreateKeyExW(coclass_key, buf, 0, NULL, 0,
 292                               KEY_READ | KEY_WRITE, NULL, &clsid_key, NULL);
 293         if (res != ERROR_SUCCESS) goto error_close_coclass_key;
 294
 295         if (list->name) {
 296             res = RegSetValueExA(clsid_key, NULL, 0, REG_SZ,
 297                                  (CONST BYTE*)(list->name),
 298                                  strlen(list->name) + 1);
 299             if (res != ERROR_SUCCESS) goto error_close_clsid_key;
 300         }
 301
 302         if (list->ips) {
 303             res = register_key_defvalueA(clsid_key, ips_keyname, list->ips);
 304             if (res != ERROR_SUCCESS) goto error_close_clsid_key;
 305         }
 306
 307         if (list->ips32) {
 308             HKEY ips32_key;
 309
 310             res = RegCreateKeyExW(clsid_key, ips32_keyname, 0, NULL, 0,
 311                                   KEY_READ | KEY_WRITE, NULL,
 312                                   &ips32_key, NULL);
 313             if (res != ERROR_SUCCESS) goto error_close_clsid_key;
 314
 315             res = RegSetValueExA(ips32_key, NULL, 0, REG_SZ,
 316                                  (CONST BYTE*)list->ips32,
 317                                  lstrlenA(list->ips32) + 1);
 318             if (res == ERROR_SUCCESS && list->ips32_tmodel)
 319                 res = RegSetValueExA(ips32_key, tmodel_valuename, 0, REG_SZ,
 320                                      (CONST BYTE*)list->ips32_tmodel,
 321                                      strlen(list->ips32_tmodel) + 1);
 322             RegCloseKey(ips32_key);
 323             if (res != ERROR_SUCCESS) goto error_close_clsid_key;
 324         }
 325
 326         if (list->progid) {
 327             res = register_key_defvalueA(clsid_key, progid_keyname,
 328                                          list->progid);
 329             if (res != ERROR_SUCCESS) goto error_close_clsid_key;
 330
 331             res = register_progid(buf, list->progid, NULL,
 332                                   list->name, list->progid_extra);
 333             if (res != ERROR_SUCCESS) goto error_close_clsid_key;
 334         }
 335
 336         if (list->viprogid) {
 337             res = register_key_defvalueA(clsid_key, viprogid_keyname,
 338                                          list->viprogid);
 339             if (res != ERROR_SUCCESS) goto error_close_clsid_key;
 340
 341             res = register_progid(buf, list->viprogid, list->progid,
 342                                   list->name, list->progid_extra);
 343             if (res != ERROR_SUCCESS) goto error_close_clsid_key;
 344         }
 345
 346     error_close_clsid_key:
 347         RegCloseKey(clsid_key);
 348     }
 349
 350 error_close_coclass_key:
 351     RegCloseKey(coclass_key);
 352 error_return:
 353     return res != ERROR_SUCCESS ? HRESULT_FROM_WIN32(res) : S_OK;
 354 }
 355
 356 /***********************************************************************
 357  *              unregister_coclasses
 358  */
 359 static HRESULT unregister_coclasses(struct regsvr_coclass const *list)
 360 {
 361     LONG res = ERROR_SUCCESS;
 362     HKEY coclass_key;
 363
 364     res = RegOpenKeyExW(HKEY_CLASSES_ROOT, clsid_keyname, 0,
 365                         KEY_READ | KEY_WRITE, &coclass_key);
 366     if (res == ERROR_FILE_NOT_FOUND) return S_OK;
 367     if (res != ERROR_SUCCESS) goto error_return;
 368
 369     for (; res == ERROR_SUCCESS && list->clsid; ++list) {
 370         WCHAR buf[39];
 371
 372         StringFromGUID2(list->clsid, buf, 39);
 373         res = recursive_delete_keyW(coclass_key, buf);
 374         if (res != ERROR_SUCCESS) goto error_close_coclass_key;
 375
 376         if (list->progid) {
 377             res = recursive_delete_keyA(HKEY_CLASSES_ROOT, list->progid);
 378             if (res != ERROR_SUCCESS) goto error_close_coclass_key;
 379         }
 380
 381         if (list->viprogid) {
 382             res = recursive_delete_keyA(HKEY_CLASSES_ROOT, list->viprogid);
 383             if (res != ERROR_SUCCESS) goto error_close_coclass_key;
 384         }
 385     }
 386
 387 error_close_coclass_key:
 388     RegCloseKey(coclass_key);
 389 error_return:
 390     return res != ERROR_SUCCESS ? HRESULT_FROM_WIN32(res) : S_OK;
 391 }
 392
 393 /***********************************************************************
 394  *              register_mediatypes_parsing
 395  */
 396 static HRESULT register_mediatypes_parsing(struct regsvr_mediatype_parsing const *list)
 397 {
 398     LONG res = ERROR_SUCCESS;
 399     HKEY mediatype_key;
 400     WCHAR buf[39];
 401     int i;
 402
 403     res = RegCreateKeyExW(HKEY_CLASSES_ROOT, mediatype_name, 0, NULL, 0,
 404                           KEY_READ | KEY_WRITE, NULL, &mediatype_key, NULL);
 405     if (res != ERROR_SUCCESS) return HRESULT_FROM_WIN32(res);
 406
 407     for (; res == ERROR_SUCCESS && list->majortype; ++list) {
 408         HKEY majortype_key = NULL;
 409         HKEY subtype_key = NULL;
 410
 411         StringFromGUID2(list->majortype, buf, 39);
 412         res = RegCreateKeyExW(mediatype_key, buf, 0, NULL, 0,
 413                               KEY_READ | KEY_WRITE, NULL, &majortype_key, NULL);
 414         if (res != ERROR_SUCCESS) goto error_close_keys;
 415
 416         StringFromGUID2(list->subtype, buf, 39);
 417         res = RegCreateKeyExW(majortype_key, buf, 0, NULL, 0,
 418                               KEY_READ | KEY_WRITE, NULL, &subtype_key, NULL);
 419         if (res != ERROR_SUCCESS) goto error_close_keys;
 420
 421         StringFromGUID2(&CLSID_AsyncReader, buf, 39);
 422         res = RegSetValueExW(subtype_key, sourcefilter_valuename, 0, REG_SZ, (CONST BYTE*)buf,
 423                              (lstrlenW(buf) + 1) * sizeof(WCHAR));
 424         if (res != ERROR_SUCCESS) goto error_close_keys;
 425
 426         for(i = 0; list->line[i]; i++) {
 427             char buffer[3];
 428             wsprintfA(buffer, "%d", i);
 429             res = RegSetValueExA(subtype_key, buffer, 0, REG_SZ, (CONST BYTE*)list->line[i],
 430                                  lstrlenA(list->line[i]));
 431             if (res != ERROR_SUCCESS) goto error_close_keys;
 432         }
 433
 434 error_close_keys:
 435         if (majortype_key)
 436             RegCloseKey(majortype_key);
 437         if (subtype_key)
 438             RegCloseKey(subtype_key);
 439     }
 440
 441     RegCloseKey(mediatype_key);
 442
 443     return res != ERROR_SUCCESS ? HRESULT_FROM_WIN32(res) : S_OK;
 444 }
 445
 446 /***********************************************************************
 447  *              register_mediatypes_extension
 448  */
 449 static HRESULT register_mediatypes_extension(struct regsvr_mediatype_extension const *list)
 450 {
 451     LONG res = ERROR_SUCCESS;
 452     HKEY mediatype_key;
 453     HKEY extensions_root_key = NULL;
 454     WCHAR buf[39];
 455
 456     res = RegCreateKeyExW(HKEY_CLASSES_ROOT, mediatype_name, 0, NULL, 0,
 457                           KEY_READ | KEY_WRITE, NULL, &mediatype_key, NULL);
 458     if (res != ERROR_SUCCESS) return HRESULT_FROM_WIN32(res);
 459
 460     res = RegCreateKeyExW(mediatype_key, extensions_keyname, 0, NULL, 0,
 461                           KEY_READ | KEY_WRITE, NULL, &extensions_root_key, NULL);
 462     if (res != ERROR_SUCCESS) goto error_return;
 463
 464     for (; res == ERROR_SUCCESS && list->majortype; ++list) {
 465         HKEY extension_key;
 466
 467         res = RegCreateKeyExA(extensions_root_key, list->extension, 0, NULL, 0,
 468                               KEY_READ | KEY_WRITE, NULL, &extension_key, NULL);
 469         if (res != ERROR_SUCCESS) break;
 470
 471         StringFromGUID2(list->majortype, buf, 39);
 472         res = RegSetValueExW(extension_key, mediatype_name, 0, REG_SZ, (CONST BYTE*)buf,
 473                              (lstrlenW(buf) + 1) * sizeof(WCHAR));
 474         if (res != ERROR_SUCCESS) goto error_close_key;
 475
 476         StringFromGUID2(list->subtype, buf, 39);
 477         res = RegSetValueExW(extension_key, subtype_valuename, 0, REG_SZ, (CONST BYTE*)buf,
 478                              (lstrlenW(buf) + 1) * sizeof(WCHAR));
 479         if (res != ERROR_SUCCESS) goto error_close_key;
 480
 481         StringFromGUID2(&CLSID_AsyncReader, buf, 39);
 482         res = RegSetValueExW(extension_key, sourcefilter_valuename, 0, REG_SZ, (CONST BYTE*)buf,
 483                              (lstrlenW(buf) + 1) * sizeof(WCHAR));
 484         if (res != ERROR_SUCCESS) goto error_close_key;
 485
 486 error_close_key:
 487         RegCloseKey(extension_key);
 488     }
 489
 490 error_return:
 491     RegCloseKey(mediatype_key);
 492     if (extensions_root_key)
 493         RegCloseKey(extensions_root_key);
 494
 495     return res != ERROR_SUCCESS ? HRESULT_FROM_WIN32(res) : S_OK;
 496 }
 497
 498 /***********************************************************************
 499  *              unregister_mediatypes_parsing
 500  */
 501 static HRESULT unregister_mediatypes_parsing(struct regsvr_mediatype_parsing const *list)
 502 {
 503     LONG res;
 504     HKEY mediatype_key;
 505     HKEY majortype_key;
 506     WCHAR buf[39];
 507
 508     res = RegOpenKeyExW(HKEY_CLASSES_ROOT, mediatype_name, 0,
 509                         KEY_READ | KEY_WRITE, &mediatype_key);
 510     if (res == ERROR_FILE_NOT_FOUND) return S_OK;
 511     if (res != ERROR_SUCCESS) return HRESULT_FROM_WIN32(res);
 512
 513     for (; res == ERROR_SUCCESS && list->majortype; ++list) {
 514         StringFromGUID2(list->majortype, buf, 39);
 515         res = RegOpenKeyExW(mediatype_key, buf, 0,
 516                         KEY_READ | KEY_WRITE, &majortype_key);
 517         if (res == ERROR_FILE_NOT_FOUND) {
 518             res = ERROR_SUCCESS;
 519             continue;
 520         }
 521         if (res != ERROR_SUCCESS) break;
 522
 523         StringFromGUID2(list->subtype, buf, 39);
 524         res = recursive_delete_keyW(majortype_key, buf);
 525         if (res == ERROR_FILE_NOT_FOUND) res = ERROR_SUCCESS;
 526
 527         /* Removed majortype key if there is no more subtype key */
 528         res = RegDeleteKeyW(majortype_key, 0);
 529         if (res == ERROR_ACCESS_DENIED) res = ERROR_SUCCESS;
 530
 531         RegCloseKey(majortype_key);
 532     }
 533
 534     RegCloseKey(mediatype_key);
 535
 536     return res != ERROR_SUCCESS ? HRESULT_FROM_WIN32(res) : S_OK;
 537 }
 538
 539 /***********************************************************************
 540  *              unregister_mediatypes_extension
 541  */
 542 static HRESULT unregister_mediatypes_extension(struct regsvr_mediatype_extension const *list)
 543 {
 544     LONG res;
 545     HKEY mediatype_key;
 546     HKEY extensions_root_key = NULL;
 547
 548     res = RegOpenKeyExW(HKEY_CLASSES_ROOT, mediatype_name, 0,
 549                         KEY_READ | KEY_WRITE, &mediatype_key);
 550     if (res == ERROR_FILE_NOT_FOUND) return S_OK;
 551     if (res != ERROR_SUCCESS) return HRESULT_FROM_WIN32(res);
 552
 553     res = RegOpenKeyExW(mediatype_key, extensions_keyname, 0,
 554                         KEY_READ | KEY_WRITE, &extensions_root_key);
 555     if (res == ERROR_FILE_NOT_FOUND)
 556         res = ERROR_SUCCESS;
 557     else if (res == ERROR_SUCCESS)
 558         for (; res == ERROR_SUCCESS && list->majortype; ++list) {
 559             res = recursive_delete_keyA(extensions_root_key, list->extension);
 560             if (res == ERROR_FILE_NOT_FOUND) res = ERROR_SUCCESS;
 561         }
 562
 563     RegCloseKey(mediatype_key);
 564     if (extensions_root_key)
 565         RegCloseKey(extensions_root_key);
 566
 567     return res != ERROR_SUCCESS ? HRESULT_FROM_WIN32(res) : S_OK;
 568 }
 569
 570 /***********************************************************************
 571  *              register_filters
 572  */
 573 static HRESULT register_filters(struct regsvr_filter const *list)
 574 {
 575     HRESULT hr;
 576     IFilterMapper2* pFM2 = NULL;
 577
 578     CoInitialize(NULL);
 579     hr = CoCreateInstance(&CLSID_FilterMapper2, NULL, CLSCTX_INPROC_SERVER, &IID_IFilterMapper2, (LPVOID*)&pFM2);
 580
 581     if (SUCCEEDED(hr)) {
 582         for (; SUCCEEDED(hr) && list->clsid; ++list) {
 583             REGFILTER2 rf2;
 584             REGFILTERPINS2* prfp2;
 585             int i;
 586
 587             for (i = 0; list->pins[i].flags != 0xFFFFFFFF; i++) ;
 588             rf2.dwVersion = 2;
 589             rf2.dwMerit = list->merit;
 590             rf2.u.s1.cPins2 = i;
 591             rf2.u.s1.rgPins2 = prfp2 = (REGFILTERPINS2*) CoTaskMemAlloc(i*sizeof(REGFILTERPINS2));
 592             if (!prfp2) {
 593                 hr = E_OUTOFMEMORY;
 594                 break;
 595             }
 596             for (i = 0; list->pins[i].flags != 0xFFFFFFFF; i++) {
 597                 REGPINTYPES* lpMediatype;
 598                 CLSID* lpClsid;
 599                 int j, nbmt;
 600
 601                 for (nbmt = 0; list->pins[i].mediatypes[nbmt].majortype; nbmt++) ;
 602                 /* Allocate a single buffer for regpintypes struct and clsids */
 603                 lpMediatype = (REGPINTYPES*) CoTaskMemAlloc(nbmt*(sizeof(REGPINTYPES) + 2*sizeof(CLSID)));
 604                 if (!lpMediatype) {
 605                     hr = E_OUTOFMEMORY;
 606                     break;
 607                 }
 608                 lpClsid = (CLSID*) (lpMediatype + nbmt);
 609                 for (j = 0; j < nbmt; j++) {
 610                     (lpMediatype + j)->clsMajorType = lpClsid + j*2;
 611                     memcpy(lpClsid + j*2, list->pins[i].mediatypes[j].majortype, sizeof(CLSID));
 612                     (lpMediatype + j)->clsMinorType = lpClsid + j*2 + 1;
 613                     if (list->pins[i].mediatypes[j].subtype)
 614                         memcpy(lpClsid + j*2 + 1, list->pins[i].mediatypes[j].subtype, sizeof(CLSID));
 615                     else {
 616                         /* Subtype are often a combination of major type + fourcc/tag */
 617                         memcpy(lpClsid + j*2 + 1, list->pins[i].mediatypes[j].majortype, sizeof(CLSID));
 618                         *(DWORD*)(lpClsid + j*2 + 1) = list->pins[i].mediatypes[j].fourcc;
 619                     }
 620                 }
 621                 prfp2[i].dwFlags = list->pins[i].flags;
 622                 prfp2[i].cInstances = 0;
 623                 prfp2[i].nMediaTypes = j;
 624                 prfp2[i].lpMediaType = lpMediatype;
 625                 prfp2[i].nMediums = 0;
 626                 prfp2[i].lpMedium = NULL;
 627                 prfp2[i].clsPinCategory = NULL;
 628             }
 629
 630             if (FAILED(hr)) {
 631                 ERR("failed to register with hresult 0x%x\n", hr);
 632                 CoTaskMemFree(prfp2);
 633                 break;
 634             }
 635
 636             hr = IFilterMapper2_RegisterFilter(pFM2, list->clsid, list->name, NULL, list->category, NULL, &rf2);
 637
 638             while (i) {
 639                 CoTaskMemFree((REGPINTYPES*)prfp2[i-1].lpMediaType);
 640                 i--;
 641             }
 642             CoTaskMemFree(prfp2);
 643         }
 644     }
 645
 646     if (pFM2)
 647         IFilterMapper2_Release(pFM2);
 648
 649     CoUninitialize();
 650
 651     return hr;
 652 }
 653
 654 /***********************************************************************
 655  *              unregister_filters
 656  */
 657 static HRESULT unregister_filters(struct regsvr_filter const *list)
 658 {
 659     HRESULT hr;
 660     IFilterMapper2* pFM2;
 661
 662     CoInitialize(NULL);
 663
 664     hr = CoCreateInstance(&CLSID_FilterMapper2, NULL, CLSCTX_INPROC_SERVER, &IID_IFilterMapper2, (LPVOID*)&pFM2);
 665
 666     if (SUCCEEDED(hr)) {
 667         for (; SUCCEEDED(hr) && list->clsid; ++list)
 668             hr = IFilterMapper2_UnregisterFilter(pFM2, list->category, NULL, list->clsid);
 669         IFilterMapper2_Release(pFM2);
 670     }
 671
 672     CoUninitialize();
 673
 674     return hr;
 675 }
 676
 677 /***********************************************************************
 678  *              regsvr_key_guid
 679  */
 680 static LONG register_key_guid(HKEY base, WCHAR const *name, GUID const *guid)
 681 {
 682     WCHAR buf[39];
 683
 684     StringFromGUID2(guid, buf, 39);
 685     return register_key_defvalueW(base, name, buf);
 686 }
 687
 688 /***********************************************************************
 689  *              regsvr_key_defvalueW
 690  */
 691 static LONG register_key_defvalueW(
 692     HKEY base,
 693     WCHAR const *name,
 694     WCHAR const *value)
 695 {
 696     LONG res;
 697     HKEY key;
 698
 699     res = RegCreateKeyExW(base, name, 0, NULL, 0,
 700                           KEY_READ | KEY_WRITE, NULL, &key, NULL);
 701     if (res != ERROR_SUCCESS) return res;
 702     res = RegSetValueExW(key, NULL, 0, REG_SZ, (CONST BYTE*)value,
 703                          (lstrlenW(value) + 1) * sizeof(WCHAR));
 704     RegCloseKey(key);
 705     return res;
 706 }
 707
 708 /***********************************************************************
 709  *              regsvr_key_defvalueA
 710  */
 711 static LONG register_key_defvalueA(
 712     HKEY base,
 713     WCHAR const *name,
 714     char const *value)
 715 {
 716     LONG res;
 717     HKEY key;
 718
 719     res = RegCreateKeyExW(base, name, 0, NULL, 0,
 720                           KEY_READ | KEY_WRITE, NULL, &key, NULL);
 721     if (res != ERROR_SUCCESS) return res;
 722     res = RegSetValueExA(key, NULL, 0, REG_SZ, (CONST BYTE*)value,
 723                          lstrlenA(value) + 1);
 724     RegCloseKey(key);
 725     return res;
 726 }
 727
 728 /***********************************************************************
 729  *              regsvr_progid
 730  */
 731 static LONG register_progid(
 732     WCHAR const *clsid,
 733     char const *progid,
 734     char const *curver_progid,
 735     char const *name,
 736     char const *extra)
 737 {
 738     LONG res;
 739     HKEY progid_key;
 740
 741     res = RegCreateKeyExA(HKEY_CLASSES_ROOT, progid, 0,
 742                           NULL, 0, KEY_READ | KEY_WRITE, NULL,
 743                           &progid_key, NULL);
 744     if (res != ERROR_SUCCESS) return res;
 745
 746     if (name) {
 747         res = RegSetValueExA(progid_key, NULL, 0, REG_SZ,
 748                              (CONST BYTE*)name, strlen(name) + 1);
 749         if (res != ERROR_SUCCESS) goto error_close_progid_key;
 750     }
 751
 752     if (clsid) {
 753         res = register_key_defvalueW(progid_key, clsid_keyname, clsid);
 754         if (res != ERROR_SUCCESS) goto error_close_progid_key;
 755     }
 756
 757     if (curver_progid) {
 758         res = register_key_defvalueA(progid_key, curver_keyname,
 759                                      curver_progid);
 760         if (res != ERROR_SUCCESS) goto error_close_progid_key;
 761     }
 762
 763     if (extra) {
 764         HKEY extra_key;
 765
 766         res = RegCreateKeyExA(progid_key, extra, 0,
 767                               NULL, 0, KEY_READ | KEY_WRITE, NULL,
 768                               &extra_key, NULL);
 769         if (res == ERROR_SUCCESS)
 770             RegCloseKey(extra_key);
 771     }
 772
 773 error_close_progid_key:
 774     RegCloseKey(progid_key);
 775     return res;
 776 }
 777
 778 /***********************************************************************
 779  *              recursive_delete_key
 780  */
 781 static LONG recursive_delete_key(HKEY key)
 782 {
 783     LONG res;
 784     WCHAR subkey_name[MAX_PATH];
 785     DWORD cName;
 786     HKEY subkey;
 787
 788     for (;;) {
 789         cName = sizeof(subkey_name) / sizeof(WCHAR);
 790         res = RegEnumKeyExW(key, 0, subkey_name, &cName,
 791                             NULL, NULL, NULL, NULL);
 792         if (res != ERROR_SUCCESS && res != ERROR_MORE_DATA) {
 793             res = ERROR_SUCCESS; /* presumably we're done enumerating */
 794             break;
 795         }
 796         res = RegOpenKeyExW(key, subkey_name, 0,
 797                             KEY_READ | KEY_WRITE, &subkey);
 798         if (res == ERROR_FILE_NOT_FOUND) continue;
 799         if (res != ERROR_SUCCESS) break;
 800
 801         res = recursive_delete_key(subkey);
 802         RegCloseKey(subkey);
 803         if (res != ERROR_SUCCESS) break;
 804     }
 805
 806     if (res == ERROR_SUCCESS) res = RegDeleteKeyW(key, 0);
 807     return res;
 808 }
 809
 810 /***********************************************************************
 811  *              recursive_delete_keyA
 812  */
 813 static LONG recursive_delete_keyA(HKEY base, char const *name)
 814 {
 815     LONG res;
 816     HKEY key;
 817
 818     res = RegOpenKeyExA(base, name, 0, KEY_READ | KEY_WRITE, &key);
 819     if (res == ERROR_FILE_NOT_FOUND) return ERROR_SUCCESS;
 820     if (res != ERROR_SUCCESS) return res;
 821     res = recursive_delete_key(key);
 822     RegCloseKey(key);
 823     return res;
 824 }
 825
 826 /***********************************************************************
 827  *              recursive_delete_keyW
 828  */
 829 static LONG recursive_delete_keyW(HKEY base, WCHAR const *name)
 830 {
 831     LONG res;
 832     HKEY key;
 833
 834     res = RegOpenKeyExW(base, name, 0, KEY_READ | KEY_WRITE, &key);
 835     if (res == ERROR_FILE_NOT_FOUND) return ERROR_SUCCESS;
 836     if (res != ERROR_SUCCESS) return res;
 837     res = recursive_delete_key(key);
 838     RegCloseKey(key);
 839     return res;
 840 }
 841
 842
 843 static GUID const CLSID_PSFactoryBuffer = {
 844     0x92a3a302, 0xda7c, 0x4a1f, {0xba,0x7e,0x18,0x02,0xbb,0x5d,0x2d,0x02} };
 845
 846 /***********************************************************************
 847  *              coclass list
 848  */
 849 static struct regsvr_coclass const coclass_list[] = {
 850     {   &CLSID_FilterGraph,
 851         "Filter Graph",
 852         NULL,
 853         "quartz.dll",
 854         "Both"
 855     },
 856     {   &CLSID_FilterGraphNoThread,
 857         "Filter Graph",
 858         NULL,
 859         "quartz.dll",
 860         "Both"
 861     },
 862     {   &CLSID_FilterMapper,
 863         "Filter Mapper",
 864         NULL,
 865         "quartz.dll",
 866         "Both"
 867     },
 868     {   &CLSID_FilterMapper2,
 869         "Filter Mapper2",
 870         NULL,
 871         "quartz.dll",
 872         "Both"
 873     },
 874     {   &CLSID_SystemClock,
 875         "System Clock",
 876         NULL,
 877         "quartz.dll",
 878         "Both"
 879     },
 880     {   &CLSID_MemoryAllocator,
 881         "Memory Allocator",
 882         NULL,
 883         "quartz.dll",
 884         "Both"
 885     },
 886     {   &CLSID_SeekingPassThru,
 887        "Seeking",
 888        NULL,
 889        "quartz.dll",
 890        "Both"
 891     },
 892     {   &CLSID_AsyncReader,
 893         "File Source Filter",
 894         NULL,
 895         "quartz.dll",
 896         "Both"
 897     },
 898     {   &CLSID_AviSplitter,
 899         "AVI Splitter",
 900         NULL,
 901         "quartz.dll",
 902         "Both"
 903     },
 904     {   &CLSID_AVIDec,
 905         "AVI Decompressor",
 906         NULL,
 907         "quartz.dll",
 908         "Both"
 909     },
 910     {   &CLSID_DSoundRender,
 911         "DirectSound Audio Renderer",
 912         NULL,
 913         "quartz.dll",
 914         "Both"
 915     },
 916     {   &CLSID_VideoRenderer,
 917         "Video Renderer",
 918         NULL,
 919         "quartz.dll",
 920         "Both"
 921     },
 922     {   &CLSID_ACMWrapper,
 923         "ACM wrapper",
 924         NULL,
 925         "quartz.dll",
 926         "Both"
 927     },
 928     {   &CLSID_WAVEParser,
 929         "Wave Parser",
 930         NULL,
 931         "quartz.dll",
 932         "Both"
 933     },
 934     { NULL }                    /* list terminator */
 935 };
 936
 937 /***********************************************************************
 938  *              interface list
 939  */
 940
 941 static struct regsvr_interface const interface_list[] = {
 942     {   &IID_IFilterGraph,
 943         "IFilterGraph",
 944         NULL,
 945         11,
 946         NULL,
 947         &CLSID_PSFactoryBuffer
 948     },
 949     {   &IID_IFilterGraph2,
 950         "IFilterGraph2",
 951         NULL,
 952         21,
 953         NULL,
 954         &CLSID_PSFactoryBuffer
 955     },
 956     {   &IID_IFilterMapper,
 957         "IFilterMapper",
 958         NULL,
 959         11,
 960         NULL,
 961         &CLSID_PSFactoryBuffer
 962     },
 963     {   &IID_IFilterMapper2,
 964         "IFilterMapper2",
 965         NULL,
 966         7,
 967         NULL,
 968         &CLSID_PSFactoryBuffer
 969     },
 970     /* FIXME:
 971     {   &IID_SeekingPassThru,
 972         "ISeekingPassThru",
 973         NULL,
 974         4,
 975         NULL,
 976         &CLSID_PSFactoryBuffer
 977     },
 978     {   &IID_AsyncReader,
 979         "IAsyncReader",
 980         NULL,
 981         11,
 982         NULL,
 983         &CLSID_PSFactoryBuffer
 984     },
 985     {   &IID_WAVEParser,
 986         "IWAVEParser",
 987         NULL,
 988         11,
 989         NULL,
 990         &CLSID_PSFactoryBuffer
 991     },*/
 992     { NULL }                    /* list terminator */
 993 };
 994
 995 /***********************************************************************
 996  *              mediatype list
 997  */
 998
 999 static struct regsvr_mediatype_parsing const mediatype_parsing_list[] = {
1000     {   &MEDIATYPE_Stream,
1001         &MEDIASUBTYPE_Avi,
1002         {   "0,4,,52494646,8,4,,41564920",
1003             NULL }
1004     },
1005     {   &MEDIATYPE_Stream,
1006         &MEDIASUBTYPE_MPEG1System,
1007         {   "0, 16, FFFFFFFFF100010001800001FFFFFFFF, 000001BA2100010001800001000001BB",
1008             NULL }
1009     },
1010     {   &MEDIATYPE_Stream,
1011         &MEDIASUBTYPE_MPEG1VideoCD,
1012         {   "0, 4, , 52494646, 8, 8, , 43445841666D7420, 36, 20, FFFFFFFF00000000FFFFFFFFFFFFFFFFFFFFFFFF, 646174610000000000FFFFFFFFFFFFFFFFFFFF00",
1013             NULL }
1014     },
1015     {   &MEDIATYPE_Stream,
1016         &MEDIASUBTYPE_MPEG1Video,
1017         {   "0, 4, , 000001B3",
1018             NULL }
1019     },
1020     {   &MEDIATYPE_Stream,
1021         &MEDIASUBTYPE_MPEG1Audio,
1022         {   "0, 2, FFE0, FFE0",
1023             "0, 10, FFFFFFFF000000000000, 494433030080808080",
1024             NULL }
1025     },
1026     {   &MEDIATYPE_Stream,
1027         &MEDIASUBTYPE_QTMovie,
1028         {   "4, 4, , 6d646174",
1029             "4, 4, , 6d6f6f76",
1030             NULL }
1031     },
1032     {   &MEDIATYPE_Stream,
1033         &MEDIASUBTYPE_WAVE,
1034         {   "0,4,,52494646,8,4,,57415645",
1035             NULL }
1036     },
1037     {   &MEDIATYPE_Stream,
1038         &MEDIASUBTYPE_AU,
1039         {   "0,4,,2e736e64",
1040             NULL }
1041     },
1042     {   &MEDIATYPE_Stream,
1043         &MEDIASUBTYPE_AIFF,
1044         {   "0,4,,464f524d,8,4,,41494646",
1045             "0,4,,464f524d,8,4,,41494643",
1046             NULL }
1047     },
1048     {   &MEDIATYPE_Stream,
1049         &MEDIATYPE_Text,
1050         {   "0,4,,4C595249",
1051             "0,4,,6C797269",
1052             NULL }
1053     },
1054     {   &MEDIATYPE_Stream,
1055         &MEDIATYPE_Midi,
1056         {   "0,4,,52494646,8,4,,524D4944",
1057             "0,4,,4D546864",
1058             NULL }
1059     },
1060     { NULL }                    /* list terminator */
1061 };
1062
1063 /***********************************************************************
1064  *              mediatype list
1065  */
1066
1067 static struct regsvr_mediatype_extension const mediatype_extension_list[] = {
1068     {   &MEDIATYPE_Stream,
1069         &MEDIASUBTYPE_MPEG1Audio,
1070         ".mp3"
1071     },
1072     { NULL }                    /* list terminator */
1073 };
1074
1075 /***********************************************************************
1076  *              filter list
1077  */
1078
1079 static struct regsvr_filter const filter_list[] = {
1080     {   &CLSID_AviSplitter,
1081         &CLSID_LegacyAmFilterCategory,
1082         {'A','V','I',' ','S','p','l','i','t','t','e','r',0},
1083         0x600000,
1084         {   {   0,
1085                 {   { &MEDIATYPE_Stream, &MEDIASUBTYPE_Avi },
1086                     { NULL }
1087                 },
1088             },
1089             {   REG_PINFLAG_B_OUTPUT,
1090                 {   { &MEDIATYPE_Video, &GUID_NULL },
1091                     { NULL }
1092                 },
1093             },
1094             { 0xFFFFFFFF },
1095         }
1096     },
1097     {   &CLSID_VideoRenderer,
1098         &CLSID_LegacyAmFilterCategory,
1099         {'V','i','d','e','o',' ','R','e','n','d','e','r','e','r',0},
1100         0x800000,
1101         {   {   REG_PINFLAG_B_RENDERER,
1102                 {   { &MEDIATYPE_Video, &GUID_NULL },
1103                     { NULL }
1104                 },
1105             },
1106             { 0xFFFFFFFF },
1107         }
1108     },
1109     {   &CLSID_AVIDec,
1110         &CLSID_LegacyAmFilterCategory,
1111         {'A','V','I',' ','D','e','c','o','m','p','r','e','s','s','o','r',0},
1112         0x600000,
1113         {   {   0,
1114                 {   { &MEDIATYPE_Video, &GUID_NULL },
1115                     { NULL }
1116                 },
1117             },
1118             {   REG_PINFLAG_B_OUTPUT,
1119                 {   { &MEDIATYPE_Video, &GUID_NULL },
1120                     { NULL }
1121                 },
1122             },
1123             { 0xFFFFFFFF },
1124         }
1125     },
1126     {   &CLSID_AsyncReader,
1127         &CLSID_LegacyAmFilterCategory,
1128         {'F','i','l','e',' ','S','o','u','r','c','e',' ','(','A','s','y','n','c','.',')',0},
1129         0x400000,
1130         {   {   REG_PINFLAG_B_OUTPUT,
1131                 {   { &MEDIATYPE_Stream, &GUID_NULL },
1132                     { NULL }
1133                 },
1134             },
1135             { 0xFFFFFFFF },
1136         }
1137     },
1138     {   &CLSID_ACMWrapper,
1139         &CLSID_LegacyAmFilterCategory,
1140         {'A','C','M',' ','W','r','a','p','p','e','r',0},
1141         0x600000,
1142         {   {   0,
1143                 {   { &MEDIATYPE_Audio, &GUID_NULL },
1144                     { NULL }
1145                 },
1146             },
1147             {   REG_PINFLAG_B_OUTPUT,
1148                 {   { &MEDIATYPE_Audio, &GUID_NULL },
1149                     { NULL }
1150                 },
1151             },
1152             { 0xFFFFFFFF },
1153         }
1154     },
1155     {   &CLSID_WAVEParser,
1156         &CLSID_LegacyAmFilterCategory,
1157         {'W','a','v','e',' ','P','a','r','s','e','r',0},
1158         0x400000,
1159         {   {   0,
1160                 {   { &MEDIATYPE_Stream, &MEDIASUBTYPE_WAVE },
1161                     { &MEDIATYPE_Stream, &MEDIASUBTYPE_AU },
1162                     { &MEDIATYPE_Stream, &MEDIASUBTYPE_AIFF },
1163                     { NULL }
1164                 },
1165             },
1166             {   REG_PINFLAG_B_OUTPUT,
1167                 {   { &MEDIATYPE_Audio, &GUID_NULL },
1168                     { NULL }
1169                 },
1170             },
1171             { 0xFFFFFFFF },
1172         }
1173     },
1174     { NULL }            /* list terminator */
1175 };
1176
1177 /***********************************************************************
1178  *              DllRegisterServer (QUARTZ.@)
1179  */
1180 HRESULT WINAPI DllRegisterServer(void)
1181 {
1182     HRESULT hr;
1183
1184     TRACE("\n");
1185
1186     hr = register_coclasses(coclass_list);
1187     if (SUCCEEDED(hr))
1188         hr = register_interfaces(interface_list);
1189     if (SUCCEEDED(hr))
1190         hr = register_mediatypes_parsing(mediatype_parsing_list);
1191     if (SUCCEEDED(hr))
1192         hr = register_mediatypes_extension(mediatype_extension_list);
1193     if (SUCCEEDED(hr))
1194         hr = register_filters(filter_list);
1195     return hr;
1196 }
1197
1198 /***********************************************************************
1199  *              DllUnregisterServer (QUARTZ.@)
1200  */
1201 HRESULT WINAPI DllUnregisterServer(void)
1202 {
1203     HRESULT hr;
1204
1205     TRACE("\n");
1206
1207     hr = unregister_filters(filter_list);
1208     if (SUCCEEDED(hr))
1209         hr = unregister_coclasses(coclass_list);
1210     if (SUCCEEDED(hr))
1211         hr = unregister_interfaces(interface_list);
1212     if (SUCCEEDED(hr))
1213         hr = unregister_mediatypes_parsing(mediatype_parsing_list);
1214     if (SUCCEEDED(hr))
1215         hr = unregister_mediatypes_extension(mediatype_extension_list);
1216     return hr;
1217 }