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
 176 /***********************************************************************
 177  *              register_interfaces
 178  */
 179 static HRESULT register_interfaces(struct regsvr_interface const *list)
 180 {
 181     LONG res = ERROR_SUCCESS;
 182     HKEY interface_key;
 183
 184     res = RegCreateKeyExW(HKEY_CLASSES_ROOT, interface_keyname, 0, NULL, 0,
 185                           KEY_READ | KEY_WRITE, NULL, &interface_key, NULL);
 186     if (res != ERROR_SUCCESS) goto error_return;
 187
 188     for (; res == ERROR_SUCCESS && list->iid; ++list) {
 189         WCHAR buf[39];
 190         HKEY iid_key;
 191
 192         StringFromGUID2(list->iid, buf, 39);
 193         res = RegCreateKeyExW(interface_key, buf, 0, NULL, 0,
 194                               KEY_READ | KEY_WRITE, NULL, &iid_key, NULL);
 195         if (res != ERROR_SUCCESS) goto error_close_interface_key;
 196
 197         if (list->name) {
 198             res = RegSetValueExA(iid_key, NULL, 0, REG_SZ,
 199                                  (CONST BYTE*)(list->name),
 200                                  strlen(list->name) + 1);
 201             if (res != ERROR_SUCCESS) goto error_close_iid_key;
 202         }
 203
 204         if (list->base_iid) {
 205             res = register_key_guid(iid_key, base_ifa_keyname, list->base_iid);
 206             if (res != ERROR_SUCCESS) goto error_close_iid_key;
 207         }
 208
 209         if (0 <= list->num_methods) {
 210             static WCHAR const fmt[3] = { '%', 'd', 0 };
 211             HKEY key;
 212
 213             res = RegCreateKeyExW(iid_key, num_methods_keyname, 0, NULL, 0,
 214                                   KEY_READ | KEY_WRITE, NULL, &key, NULL);
 215             if (res != ERROR_SUCCESS) goto error_close_iid_key;
 216
 217             wsprintfW(buf, fmt, list->num_methods);
 218             res = RegSetValueExW(key, NULL, 0, REG_SZ,
 219                                  (CONST BYTE*)buf,
 220                                  (lstrlenW(buf) + 1) * sizeof(WCHAR));
 221             RegCloseKey(key);
 222
 223             if (res != ERROR_SUCCESS) goto error_close_iid_key;
 224         }
 225
 226         if (list->ps_clsid) {
 227             res = register_key_guid(iid_key, ps_clsid_keyname, list->ps_clsid);
 228             if (res != ERROR_SUCCESS) goto error_close_iid_key;
 229         }
 230
 231         if (list->ps_clsid32) {
 232             res = register_key_guid(iid_key, ps_clsid32_keyname, list->ps_clsid32);
 233             if (res != ERROR_SUCCESS) goto error_close_iid_key;
 234         }
 235
 236     error_close_iid_key:
 237         RegCloseKey(iid_key);
 238     }
 239
 240 error_close_interface_key:
 241     RegCloseKey(interface_key);
 242 error_return:
 243     return res != ERROR_SUCCESS ? HRESULT_FROM_WIN32(res) : S_OK;
 244 }
 245
 246 /***********************************************************************
 247  *              unregister_interfaces
 248  */
 249 static HRESULT unregister_interfaces(struct regsvr_interface const *list)
 250 {
 251     LONG res = ERROR_SUCCESS;
 252     HKEY interface_key;
 253
 254     res = RegOpenKeyExW(HKEY_CLASSES_ROOT, interface_keyname, 0,
 255                         KEY_READ | KEY_WRITE, &interface_key);
 256     if (res == ERROR_FILE_NOT_FOUND) return S_OK;
 257     if (res != ERROR_SUCCESS) goto error_return;
 258
 259     for (; res == ERROR_SUCCESS && list->iid; ++list) {
 260         WCHAR buf[39];
 261
 262         StringFromGUID2(list->iid, buf, 39);
 263         res = RegDeleteTreeW(interface_key, buf);
 264         if (res == ERROR_FILE_NOT_FOUND) res = ERROR_SUCCESS;
 265     }
 266
 267     RegCloseKey(interface_key);
 268 error_return:
 269     return res != ERROR_SUCCESS ? HRESULT_FROM_WIN32(res) : S_OK;
 270 }
 271
 272 /***********************************************************************
 273  *              register_coclasses
 274  */
 275 static HRESULT register_coclasses(struct regsvr_coclass const *list)
 276 {
 277     LONG res = ERROR_SUCCESS;
 278     HKEY coclass_key;
 279
 280     res = RegCreateKeyExW(HKEY_CLASSES_ROOT, clsid_keyname, 0, NULL, 0,
 281                           KEY_READ | KEY_WRITE, NULL, &coclass_key, NULL);
 282     if (res != ERROR_SUCCESS) goto error_return;
 283
 284     for (; res == ERROR_SUCCESS && list->clsid; ++list) {
 285         WCHAR buf[39];
 286         HKEY clsid_key;
 287
 288         StringFromGUID2(list->clsid, buf, 39);
 289         res = RegCreateKeyExW(coclass_key, buf, 0, NULL, 0,
 290                               KEY_READ | KEY_WRITE, NULL, &clsid_key, NULL);
 291         if (res != ERROR_SUCCESS) goto error_close_coclass_key;
 292
 293         if (list->name) {
 294             res = RegSetValueExA(clsid_key, NULL, 0, REG_SZ,
 295                                  (CONST BYTE*)(list->name),
 296                                  strlen(list->name) + 1);
 297             if (res != ERROR_SUCCESS) goto error_close_clsid_key;
 298         }
 299
 300         if (list->ips) {
 301             res = register_key_defvalueA(clsid_key, ips_keyname, list->ips);
 302             if (res != ERROR_SUCCESS) goto error_close_clsid_key;
 303         }
 304
 305         if (list->ips32) {
 306             HKEY ips32_key;
 307
 308             res = RegCreateKeyExW(clsid_key, ips32_keyname, 0, NULL, 0,
 309                                   KEY_READ | KEY_WRITE, NULL,
 310                                   &ips32_key, NULL);
 311             if (res != ERROR_SUCCESS) goto error_close_clsid_key;
 312
 313             res = RegSetValueExA(ips32_key, NULL, 0, REG_SZ,
 314                                  (CONST BYTE*)list->ips32,
 315                                  lstrlenA(list->ips32) + 1);
 316             if (res == ERROR_SUCCESS && list->ips32_tmodel)
 317                 res = RegSetValueExA(ips32_key, tmodel_valuename, 0, REG_SZ,
 318                                      (CONST BYTE*)list->ips32_tmodel,
 319                                      strlen(list->ips32_tmodel) + 1);
 320             RegCloseKey(ips32_key);
 321             if (res != ERROR_SUCCESS) goto error_close_clsid_key;
 322         }
 323
 324         if (list->progid) {
 325             res = register_key_defvalueA(clsid_key, progid_keyname,
 326                                          list->progid);
 327             if (res != ERROR_SUCCESS) goto error_close_clsid_key;
 328
 329             res = register_progid(buf, list->progid, NULL,
 330                                   list->name, list->progid_extra);
 331             if (res != ERROR_SUCCESS) goto error_close_clsid_key;
 332         }
 333
 334         if (list->viprogid) {
 335             res = register_key_defvalueA(clsid_key, viprogid_keyname,
 336                                          list->viprogid);
 337             if (res != ERROR_SUCCESS) goto error_close_clsid_key;
 338
 339             res = register_progid(buf, list->viprogid, list->progid,
 340                                   list->name, list->progid_extra);
 341             if (res != ERROR_SUCCESS) goto error_close_clsid_key;
 342         }
 343
 344     error_close_clsid_key:
 345         RegCloseKey(clsid_key);
 346     }
 347
 348 error_close_coclass_key:
 349     RegCloseKey(coclass_key);
 350 error_return:
 351     return res != ERROR_SUCCESS ? HRESULT_FROM_WIN32(res) : S_OK;
 352 }
 353
 354 /***********************************************************************
 355  *              unregister_coclasses
 356  */
 357 static HRESULT unregister_coclasses(struct regsvr_coclass const *list)
 358 {
 359     LONG res = ERROR_SUCCESS;
 360     HKEY coclass_key;
 361
 362     res = RegOpenKeyExW(HKEY_CLASSES_ROOT, clsid_keyname, 0,
 363                         KEY_READ | KEY_WRITE, &coclass_key);
 364     if (res == ERROR_FILE_NOT_FOUND) return S_OK;
 365     if (res != ERROR_SUCCESS) goto error_return;
 366
 367     for (; res == ERROR_SUCCESS && list->clsid; ++list) {
 368         WCHAR buf[39];
 369
 370         StringFromGUID2(list->clsid, buf, 39);
 371         res = RegDeleteTreeW(coclass_key, buf);
 372         if (res == ERROR_FILE_NOT_FOUND) res = ERROR_SUCCESS;
 373         if (res != ERROR_SUCCESS) goto error_close_coclass_key;
 374
 375         if (list->progid) {
 376             res = RegDeleteTreeA(HKEY_CLASSES_ROOT, list->progid);
 377             if (res == ERROR_FILE_NOT_FOUND) res = ERROR_SUCCESS;
 378             if (res != ERROR_SUCCESS) goto error_close_coclass_key;
 379         }
 380
 381         if (list->viprogid) {
 382             res = RegDeleteTreeA(HKEY_CLASSES_ROOT, list->viprogid);
 383             if (res == ERROR_FILE_NOT_FOUND) res = ERROR_SUCCESS;
 384             if (res != ERROR_SUCCESS) goto error_close_coclass_key;
 385         }
 386     }
 387
 388 error_close_coclass_key:
 389     RegCloseKey(coclass_key);
 390 error_return:
 391     return res != ERROR_SUCCESS ? HRESULT_FROM_WIN32(res) : S_OK;
 392 }
 393
 394 /***********************************************************************
 395  *              register_mediatypes_parsing
 396  */
 397 static HRESULT register_mediatypes_parsing(struct regsvr_mediatype_parsing const *list)
 398 {
 399     LONG res = ERROR_SUCCESS;
 400     HKEY mediatype_key;
 401     WCHAR buf[39];
 402     int i;
 403
 404     res = RegCreateKeyExW(HKEY_CLASSES_ROOT, mediatype_name, 0, NULL, 0,
 405                           KEY_READ | KEY_WRITE, NULL, &mediatype_key, NULL);
 406     if (res != ERROR_SUCCESS) return HRESULT_FROM_WIN32(res);
 407
 408     for (; res == ERROR_SUCCESS && list->majortype; ++list) {
 409         HKEY majortype_key = NULL;
 410         HKEY subtype_key = NULL;
 411
 412         StringFromGUID2(list->majortype, buf, 39);
 413         res = RegCreateKeyExW(mediatype_key, buf, 0, NULL, 0,
 414                               KEY_READ | KEY_WRITE, NULL, &majortype_key, NULL);
 415         if (res != ERROR_SUCCESS) goto error_close_keys;
 416
 417         StringFromGUID2(list->subtype, buf, 39);
 418         res = RegCreateKeyExW(majortype_key, buf, 0, NULL, 0,
 419                               KEY_READ | KEY_WRITE, NULL, &subtype_key, NULL);
 420         if (res != ERROR_SUCCESS) goto error_close_keys;
 421
 422         StringFromGUID2(&CLSID_AsyncReader, buf, 39);
 423         res = RegSetValueExW(subtype_key, sourcefilter_valuename, 0, REG_SZ, (CONST BYTE*)buf,
 424                              (lstrlenW(buf) + 1) * sizeof(WCHAR));
 425         if (res != ERROR_SUCCESS) goto error_close_keys;
 426
 427         for(i = 0; list->line[i]; i++) {
 428             char buffer[3];
 429             wsprintfA(buffer, "%d", i);
 430             res = RegSetValueExA(subtype_key, buffer, 0, REG_SZ, (CONST BYTE*)list->line[i],
 431                                  lstrlenA(list->line[i]));
 432             if (res != ERROR_SUCCESS) goto error_close_keys;
 433         }
 434
 435 error_close_keys:
 436         if (majortype_key)
 437             RegCloseKey(majortype_key);
 438         if (subtype_key)
 439             RegCloseKey(subtype_key);
 440     }
 441
 442     RegCloseKey(mediatype_key);
 443
 444     return res != ERROR_SUCCESS ? HRESULT_FROM_WIN32(res) : S_OK;
 445 }
 446
 447 /***********************************************************************
 448  *              register_mediatypes_extension
 449  */
 450 static HRESULT register_mediatypes_extension(struct regsvr_mediatype_extension const *list)
 451 {
 452     LONG res = ERROR_SUCCESS;
 453     HKEY mediatype_key;
 454     HKEY extensions_root_key = NULL;
 455     WCHAR buf[39];
 456
 457     res = RegCreateKeyExW(HKEY_CLASSES_ROOT, mediatype_name, 0, NULL, 0,
 458                           KEY_READ | KEY_WRITE, NULL, &mediatype_key, NULL);
 459     if (res != ERROR_SUCCESS) return HRESULT_FROM_WIN32(res);
 460
 461     res = RegCreateKeyExW(mediatype_key, extensions_keyname, 0, NULL, 0,
 462                           KEY_READ | KEY_WRITE, NULL, &extensions_root_key, NULL);
 463     if (res != ERROR_SUCCESS) goto error_return;
 464
 465     for (; res == ERROR_SUCCESS && list->majortype; ++list) {
 466         HKEY extension_key;
 467
 468         res = RegCreateKeyExA(extensions_root_key, list->extension, 0, NULL, 0,
 469                               KEY_READ | KEY_WRITE, NULL, &extension_key, NULL);
 470         if (res != ERROR_SUCCESS) break;
 471
 472         StringFromGUID2(list->majortype, buf, 39);
 473         res = RegSetValueExW(extension_key, mediatype_name, 0, REG_SZ, (CONST BYTE*)buf,
 474                              (lstrlenW(buf) + 1) * sizeof(WCHAR));
 475         if (res != ERROR_SUCCESS) goto error_close_key;
 476
 477         StringFromGUID2(list->subtype, buf, 39);
 478         res = RegSetValueExW(extension_key, subtype_valuename, 0, REG_SZ, (CONST BYTE*)buf,
 479                              (lstrlenW(buf) + 1) * sizeof(WCHAR));
 480         if (res != ERROR_SUCCESS) goto error_close_key;
 481
 482         StringFromGUID2(&CLSID_AsyncReader, buf, 39);
 483         res = RegSetValueExW(extension_key, sourcefilter_valuename, 0, REG_SZ, (CONST BYTE*)buf,
 484                              (lstrlenW(buf) + 1) * sizeof(WCHAR));
 485         if (res != ERROR_SUCCESS) goto error_close_key;
 486
 487 error_close_key:
 488         RegCloseKey(extension_key);
 489     }
 490
 491 error_return:
 492     RegCloseKey(mediatype_key);
 493     if (extensions_root_key)
 494         RegCloseKey(extensions_root_key);
 495
 496     return res != ERROR_SUCCESS ? HRESULT_FROM_WIN32(res) : S_OK;
 497 }
 498
 499 /***********************************************************************
 500  *              unregister_mediatypes_parsing
 501  */
 502 static HRESULT unregister_mediatypes_parsing(struct regsvr_mediatype_parsing const *list)
 503 {
 504     LONG res;
 505     HKEY mediatype_key;
 506     HKEY majortype_key;
 507     WCHAR buf[39];
 508
 509     res = RegOpenKeyExW(HKEY_CLASSES_ROOT, mediatype_name, 0,
 510                         KEY_READ | KEY_WRITE, &mediatype_key);
 511     if (res == ERROR_FILE_NOT_FOUND) return S_OK;
 512     if (res != ERROR_SUCCESS) return HRESULT_FROM_WIN32(res);
 513
 514     for (; res == ERROR_SUCCESS && list->majortype; ++list) {
 515         StringFromGUID2(list->majortype, buf, 39);
 516         res = RegOpenKeyExW(mediatype_key, buf, 0,
 517                         KEY_READ | KEY_WRITE, &majortype_key);
 518         if (res == ERROR_FILE_NOT_FOUND) {
 519             res = ERROR_SUCCESS;
 520             continue;
 521         }
 522         if (res != ERROR_SUCCESS) break;
 523
 524         StringFromGUID2(list->subtype, buf, 39);
 525         res = RegDeleteTreeW(majortype_key, buf);
 526         if (res == ERROR_FILE_NOT_FOUND) res = ERROR_SUCCESS;
 527
 528         /* Removed majortype key if there is no more subtype key */
 529         res = RegDeleteKeyW(majortype_key, 0);
 530         if (res == ERROR_ACCESS_DENIED) res = ERROR_SUCCESS;
 531
 532         RegCloseKey(majortype_key);
 533     }
 534
 535     RegCloseKey(mediatype_key);
 536
 537     return res != ERROR_SUCCESS ? HRESULT_FROM_WIN32(res) : S_OK;
 538 }
 539
 540 /***********************************************************************
 541  *              unregister_mediatypes_extension
 542  */
 543 static HRESULT unregister_mediatypes_extension(struct regsvr_mediatype_extension const *list)
 544 {
 545     LONG res;
 546     HKEY mediatype_key;
 547     HKEY extensions_root_key = NULL;
 548
 549     res = RegOpenKeyExW(HKEY_CLASSES_ROOT, mediatype_name, 0,
 550                         KEY_READ | KEY_WRITE, &mediatype_key);
 551     if (res == ERROR_FILE_NOT_FOUND) return S_OK;
 552     if (res != ERROR_SUCCESS) return HRESULT_FROM_WIN32(res);
 553
 554     res = RegOpenKeyExW(mediatype_key, extensions_keyname, 0,
 555                         KEY_READ | KEY_WRITE, &extensions_root_key);
 556     if (res == ERROR_FILE_NOT_FOUND)
 557         res = ERROR_SUCCESS;
 558     else if (res == ERROR_SUCCESS)
 559         for (; res == ERROR_SUCCESS && list->majortype; ++list) {
 560             res = RegDeleteTreeA(extensions_root_key, list->extension);
 561             if (res == ERROR_FILE_NOT_FOUND) res = ERROR_SUCCESS;
 562         }
 563
 564     RegCloseKey(mediatype_key);
 565     if (extensions_root_key)
 566         RegCloseKey(extensions_root_key);
 567
 568     return res != ERROR_SUCCESS ? HRESULT_FROM_WIN32(res) : S_OK;
 569 }
 570
 571 /***********************************************************************
 572  *              register_filters
 573  */
 574 static HRESULT register_filters(struct regsvr_filter const *list)
 575 {
 576     HRESULT hr;
 577     IFilterMapper2* pFM2 = NULL;
 578
 579     CoInitialize(NULL);
 580     hr = CoCreateInstance(&CLSID_FilterMapper2, NULL, CLSCTX_INPROC_SERVER, &IID_IFilterMapper2, (LPVOID*)&pFM2);
 581
 582     if (SUCCEEDED(hr)) {
 583         for (; SUCCEEDED(hr) && list->clsid; ++list) {
 584             REGFILTER2 rf2;
 585             REGFILTERPINS2* prfp2;
 586             int i;
 587
 588             for (i = 0; list->pins[i].flags != 0xFFFFFFFF; i++) ;
 589             rf2.dwVersion = 2;
 590             rf2.dwMerit = list->merit;
 591             rf2.u.s1.cPins2 = i;
 592             rf2.u.s1.rgPins2 = prfp2 = CoTaskMemAlloc(i*sizeof(REGFILTERPINS2));
 593             if (!prfp2) {
 594                 hr = E_OUTOFMEMORY;
 595                 break;
 596             }
 597             for (i = 0; list->pins[i].flags != 0xFFFFFFFF; i++) {
 598                 REGPINTYPES* lpMediatype;
 599                 CLSID* lpClsid;
 600                 int j, nbmt;
 601
 602                 for (nbmt = 0; list->pins[i].mediatypes[nbmt].majortype; nbmt++) ;
 603                 /* Allocate a single buffer for regpintypes struct and clsids */
 604                 lpMediatype = CoTaskMemAlloc(nbmt*(sizeof(REGPINTYPES) + 2*sizeof(CLSID)));
 605                 if (!lpMediatype) {
 606                     hr = E_OUTOFMEMORY;
 607                     break;
 608                 }
 609                 lpClsid = (CLSID*) (lpMediatype + nbmt);
 610                 for (j = 0; j < nbmt; j++) {
 611                     (lpMediatype + j)->clsMajorType = lpClsid + j*2;
 612                     memcpy(lpClsid + j*2, list->pins[i].mediatypes[j].majortype, sizeof(CLSID));
 613                     (lpMediatype + j)->clsMinorType = lpClsid + j*2 + 1;
 614                     if (list->pins[i].mediatypes[j].subtype)
 615                         memcpy(lpClsid + j*2 + 1, list->pins[i].mediatypes[j].subtype, sizeof(CLSID));
 616                     else {
 617                         /* Subtype are often a combination of major type + fourcc/tag */
 618                         memcpy(lpClsid + j*2 + 1, list->pins[i].mediatypes[j].majortype, sizeof(CLSID));
 619                         *(DWORD*)(lpClsid + j*2 + 1) = list->pins[i].mediatypes[j].fourcc;
 620                     }
 621                 }
 622                 prfp2[i].dwFlags = list->pins[i].flags;
 623                 prfp2[i].cInstances = 0;
 624                 prfp2[i].nMediaTypes = j;
 625                 prfp2[i].lpMediaType = lpMediatype;
 626                 prfp2[i].nMediums = 0;
 627                 prfp2[i].lpMedium = NULL;
 628                 prfp2[i].clsPinCategory = NULL;
 629             }
 630
 631             if (FAILED(hr)) {
 632                 ERR("failed to register with hresult 0x%x\n", hr);
 633                 CoTaskMemFree(prfp2);
 634                 break;
 635             }
 636
 637             hr = IFilterMapper2_RegisterFilter(pFM2, list->clsid, list->name, NULL, list->category, NULL, &rf2);
 638
 639             while (i) {
 640                 CoTaskMemFree((REGPINTYPES*)prfp2[i-1].lpMediaType);
 641                 i--;
 642             }
 643             CoTaskMemFree(prfp2);
 644         }
 645     }
 646
 647     if (pFM2)
 648         IFilterMapper2_Release(pFM2);
 649
 650     CoUninitialize();
 651
 652     return hr;
 653 }
 654
 655 /***********************************************************************
 656  *              unregister_filters
 657  */
 658 static HRESULT unregister_filters(struct regsvr_filter const *list)
 659 {
 660     HRESULT hr;
 661     IFilterMapper2* pFM2;
 662
 663     CoInitialize(NULL);
 664
 665     hr = CoCreateInstance(&CLSID_FilterMapper2, NULL, CLSCTX_INPROC_SERVER, &IID_IFilterMapper2, (LPVOID*)&pFM2);
 666
 667     if (SUCCEEDED(hr)) {
 668         for (; SUCCEEDED(hr) && list->clsid; ++list)
 669             hr = IFilterMapper2_UnregisterFilter(pFM2, list->category, NULL, list->clsid);
 670         IFilterMapper2_Release(pFM2);
 671     }
 672
 673     CoUninitialize();
 674
 675     return hr;
 676 }
 677
 678 /***********************************************************************
 679  *              regsvr_key_guid
 680  */
 681 static LONG register_key_guid(HKEY base, WCHAR const *name, GUID const *guid)
 682 {
 683     WCHAR buf[39];
 684
 685     StringFromGUID2(guid, buf, 39);
 686     return register_key_defvalueW(base, name, buf);
 687 }
 688
 689 /***********************************************************************
 690  *              regsvr_key_defvalueW
 691  */
 692 static LONG register_key_defvalueW(
 693     HKEY base,
 694     WCHAR const *name,
 695     WCHAR const *value)
 696 {
 697     LONG res;
 698     HKEY key;
 699
 700     res = RegCreateKeyExW(base, name, 0, NULL, 0,
 701                           KEY_READ | KEY_WRITE, NULL, &key, NULL);
 702     if (res != ERROR_SUCCESS) return res;
 703     res = RegSetValueExW(key, NULL, 0, REG_SZ, (CONST BYTE*)value,
 704                          (lstrlenW(value) + 1) * sizeof(WCHAR));
 705     RegCloseKey(key);
 706     return res;
 707 }
 708
 709 /***********************************************************************
 710  *              regsvr_key_defvalueA
 711  */
 712 static LONG register_key_defvalueA(
 713     HKEY base,
 714     WCHAR const *name,
 715     char const *value)
 716 {
 717     LONG res;
 718     HKEY key;
 719
 720     res = RegCreateKeyExW(base, name, 0, NULL, 0,
 721                           KEY_READ | KEY_WRITE, NULL, &key, NULL);
 722     if (res != ERROR_SUCCESS) return res;
 723     res = RegSetValueExA(key, NULL, 0, REG_SZ, (CONST BYTE*)value,
 724                          lstrlenA(value) + 1);
 725     RegCloseKey(key);
 726     return res;
 727 }
 728
 729 /***********************************************************************
 730  *              regsvr_progid
 731  */
 732 static LONG register_progid(
 733     WCHAR const *clsid,
 734     char const *progid,
 735     char const *curver_progid,
 736     char const *name,
 737     char const *extra)
 738 {
 739     LONG res;
 740     HKEY progid_key;
 741
 742     res = RegCreateKeyExA(HKEY_CLASSES_ROOT, progid, 0,
 743                           NULL, 0, KEY_READ | KEY_WRITE, NULL,
 744                           &progid_key, NULL);
 745     if (res != ERROR_SUCCESS) return res;
 746
 747     if (name) {
 748         res = RegSetValueExA(progid_key, NULL, 0, REG_SZ,
 749                              (CONST BYTE*)name, strlen(name) + 1);
 750         if (res != ERROR_SUCCESS) goto error_close_progid_key;
 751     }
 752
 753     if (clsid) {
 754         res = register_key_defvalueW(progid_key, clsid_keyname, clsid);
 755         if (res != ERROR_SUCCESS) goto error_close_progid_key;
 756     }
 757
 758     if (curver_progid) {
 759         res = register_key_defvalueA(progid_key, curver_keyname,
 760                                      curver_progid);
 761         if (res != ERROR_SUCCESS) goto error_close_progid_key;
 762     }
 763
 764     if (extra) {
 765         HKEY extra_key;
 766
 767         res = RegCreateKeyExA(progid_key, extra, 0,
 768                               NULL, 0, KEY_READ | KEY_WRITE, NULL,
 769                               &extra_key, NULL);
 770         if (res == ERROR_SUCCESS)
 771             RegCloseKey(extra_key);
 772     }
 773
 774 error_close_progid_key:
 775     RegCloseKey(progid_key);
 776     return res;
 777 }
 778
 779 static GUID const CLSID_PSFactoryBuffer = {
 780     0x92a3a302, 0xda7c, 0x4a1f, {0xba,0x7e,0x18,0x02,0xbb,0x5d,0x2d,0x02} };
 781
 782 /***********************************************************************
 783  *              coclass list
 784  */
 785 static struct regsvr_coclass const coclass_list[] = {
 786     {   &CLSID_FilterGraph,
 787         "Filter Graph",
 788         NULL,
 789         "quartz.dll",
 790         "Both"
 791     },
 792     {   &CLSID_FilterGraphNoThread,
 793         "Filter Graph",
 794         NULL,
 795         "quartz.dll",
 796         "Both"
 797     },
 798     {   &CLSID_FilterMapper,
 799         "Filter Mapper",
 800         NULL,
 801         "quartz.dll",
 802         "Both"
 803     },
 804     {   &CLSID_FilterMapper2,
 805         "Filter Mapper2",
 806         NULL,
 807         "quartz.dll",
 808         "Both"
 809     },
 810     {   &CLSID_SystemClock,
 811         "System Clock",
 812         NULL,
 813         "quartz.dll",
 814         "Both"
 815     },
 816     {   &CLSID_MemoryAllocator,
 817         "Memory Allocator",
 818         NULL,
 819         "quartz.dll",
 820         "Both"
 821     },
 822     {   &CLSID_SeekingPassThru,
 823        "Seeking",
 824        NULL,
 825        "quartz.dll",
 826        "Both"
 827     },
 828     {   &CLSID_AsyncReader,
 829         "File Source Filter",
 830         NULL,
 831         "quartz.dll",
 832         "Both"
 833     },
 834     {   &CLSID_AviSplitter,
 835         "AVI Splitter",
 836         NULL,
 837         "quartz.dll",
 838         "Both"
 839     },
 840     {   &CLSID_MPEG1Splitter,
 841         "MPEG-I Stream Splitter",
 842         NULL,
 843         "quartz.dll",
 844         "Both"
 845     },
 846     {   &CLSID_AVIDec,
 847         "AVI Decompressor",
 848         NULL,
 849         "quartz.dll",
 850         "Both"
 851     },
 852     {   &CLSID_DSoundRender,
 853         "DirectSound Audio Renderer",
 854         NULL,
 855         "quartz.dll",
 856         "Both"
 857     },
 858     {   &CLSID_VideoRenderer,
 859         "Video Renderer",
 860         NULL,
 861         "quartz.dll",
 862         "Both"
 863     },
 864     {   &CLSID_VideoRendererDefault,
 865         "Default Video Renderer",
 866         NULL,
 867         "quartz.dll",
 868         "Both"
 869     },
 870     {   &CLSID_ACMWrapper,
 871         "ACM wrapper",
 872         NULL,
 873         "quartz.dll",
 874         "Both"
 875     },
 876     {   &CLSID_WAVEParser,
 877         "Wave Parser",
 878         NULL,
 879         "quartz.dll",
 880         "Both"
 881     },
 882     { NULL }                    /* list terminator */
 883 };
 884
 885 /***********************************************************************
 886  *              interface list
 887  */
 888
 889 static struct regsvr_interface const interface_list[] = {
 890     {   &IID_IFilterGraph,
 891         "IFilterGraph",
 892         NULL,
 893         11,
 894         NULL,
 895         &CLSID_PSFactoryBuffer
 896     },
 897     {   &IID_IFilterGraph2,
 898         "IFilterGraph2",
 899         NULL,
 900         21,
 901         NULL,
 902         &CLSID_PSFactoryBuffer
 903     },
 904     {   &IID_IFilterMapper,
 905         "IFilterMapper",
 906         NULL,
 907         11,
 908         NULL,
 909         &CLSID_PSFactoryBuffer
 910     },
 911     {   &IID_IFilterMapper2,
 912         "IFilterMapper2",
 913         NULL,
 914         7,
 915         NULL,
 916         &CLSID_PSFactoryBuffer
 917     },
 918     /* FIXME:
 919     {   &IID_SeekingPassThru,
 920         "ISeekingPassThru",
 921         NULL,
 922         4,
 923         NULL,
 924         &CLSID_PSFactoryBuffer
 925     },
 926     {   &IID_AsyncReader,
 927         "IAsyncReader",
 928         NULL,
 929         11,
 930         NULL,
 931         &CLSID_PSFactoryBuffer
 932     },
 933     {   &IID_WAVEParser,
 934         "IWAVEParser",
 935         NULL,
 936         11,
 937         NULL,
 938         &CLSID_PSFactoryBuffer
 939     },*/
 940     { NULL }                    /* list terminator */
 941 };
 942
 943 /***********************************************************************
 944  *              mediatype list
 945  */
 946
 947 static struct regsvr_mediatype_parsing const mediatype_parsing_list[] = {
 948     {   &MEDIATYPE_Stream,
 949         &MEDIASUBTYPE_Avi,
 950         {   "0,4,,52494646,8,4,,41564920",
 951             NULL }
 952     },
 953     {   &MEDIATYPE_Stream,
 954         &MEDIASUBTYPE_MPEG1System,
 955         {   "0, 16, FFFFFFFFF100010001800001FFFFFFFF, 000001BA2100010001800001000001BB",
 956             NULL }
 957     },
 958     {   &MEDIATYPE_Stream,
 959         &MEDIASUBTYPE_MPEG1VideoCD,
 960         {   "0, 4, , 52494646, 8, 8, , 43445841666D7420, 36, 20, FFFFFFFF00000000FFFFFFFFFFFFFFFFFFFFFFFF, 646174610000000000FFFFFFFFFFFFFFFFFFFF00",
 961             NULL }
 962     },
 963     {   &MEDIATYPE_Stream,
 964         &MEDIASUBTYPE_MPEG1Video,
 965         {   "0, 4, , 000001B3",
 966             NULL }
 967     },
 968     {   &MEDIATYPE_Stream,
 969         &MEDIASUBTYPE_MPEG1Audio,
 970         {   "0, 2, FFE0, FFE0",
 971             "0, 10, FFFFFFFF000000000000, 494433030080808080",
 972             NULL }
 973     },
 974     {   &MEDIATYPE_Stream,
 975         &MEDIASUBTYPE_QTMovie,
 976         {   "4, 4, , 6d646174",
 977             "4, 4, , 6d6f6f76",
 978             NULL }
 979     },
 980     {   &MEDIATYPE_Stream,
 981         &MEDIASUBTYPE_WAVE,
 982         {   "0,4,,52494646,8,4,,57415645",
 983             NULL }
 984     },
 985     {   &MEDIATYPE_Stream,
 986         &MEDIASUBTYPE_AU,
 987         {   "0,4,,2e736e64",
 988             NULL }
 989     },
 990     {   &MEDIATYPE_Stream,
 991         &MEDIASUBTYPE_AIFF,
 992         {   "0,4,,464f524d,8,4,,41494646",
 993             "0,4,,464f524d,8,4,,41494643",
 994             NULL }
 995     },
 996     {   &MEDIATYPE_Stream,
 997         &MEDIATYPE_Text,
 998         {   "0,4,,4C595249",
 999             "0,4,,6C797269",
1000             NULL }
1001     },
1002     {   &MEDIATYPE_Stream,
1003         &MEDIATYPE_Midi,
1004         {   "0,4,,52494646,8,4,,524D4944",
1005             "0,4,,4D546864",
1006             NULL }
1007     },
1008     { NULL }                    /* list terminator */
1009 };
1010
1011 /***********************************************************************
1012  *              mediatype list
1013  */
1014
1015 static struct regsvr_mediatype_extension const mediatype_extension_list[] = {
1016     {   &MEDIATYPE_Stream,
1017         &MEDIASUBTYPE_MPEG1Audio,
1018         ".mp3"
1019     },
1020     { NULL }                    /* list terminator */
1021 };
1022
1023 /***********************************************************************
1024  *              filter list
1025  */
1026
1027 static struct regsvr_filter const filter_list[] = {
1028     {   &CLSID_AviSplitter,
1029         &CLSID_LegacyAmFilterCategory,
1030         {'A','V','I',' ','S','p','l','i','t','t','e','r',0},
1031         0x600000,
1032         {   {   0,
1033                 {   { &MEDIATYPE_Stream, &MEDIASUBTYPE_Avi },
1034                     { NULL }
1035                 },
1036             },
1037             {   REG_PINFLAG_B_OUTPUT,
1038                 {   { &MEDIATYPE_Video, &GUID_NULL },
1039                     { NULL }
1040                 },
1041             },
1042             { 0xFFFFFFFF },
1043         }
1044     },
1045     {   &CLSID_MPEG1Splitter,
1046         &CLSID_LegacyAmFilterCategory,
1047         {'M','P','E','G','-','I',' ','S','t','r','e','a','m',' ','S','p','l','i','t','t','e','r',0},
1048         0x600000,
1049         {   {   0,
1050                 {   { &MEDIATYPE_Stream, &MEDIASUBTYPE_MPEG1Audio },
1051                     { &MEDIATYPE_Stream, &MEDIASUBTYPE_MPEG1Video },
1052                     { &MEDIATYPE_Stream, &MEDIASUBTYPE_MPEG1System },
1053                     { &MEDIATYPE_Stream, &MEDIASUBTYPE_MPEG1VideoCD },
1054                     { NULL }
1055                 },
1056             },
1057             {   REG_PINFLAG_B_OUTPUT,
1058                 {   { &MEDIATYPE_Audio, &MEDIASUBTYPE_MPEG1Packet },
1059                     { &MEDIATYPE_Audio, &MEDIASUBTYPE_MPEG1AudioPayload },
1060                     { NULL }
1061                 },
1062             },
1063             {   REG_PINFLAG_B_OUTPUT,
1064                 {   { &MEDIATYPE_Video, &MEDIASUBTYPE_MPEG1Packet },
1065                     { &MEDIATYPE_Video, &MEDIASUBTYPE_MPEG1Payload },
1066                     { NULL }
1067                 },
1068             },
1069             { 0xFFFFFFFF },
1070         }
1071     },
1072     {   &CLSID_VideoRenderer,
1073         &CLSID_LegacyAmFilterCategory,
1074         {'V','i','d','e','o',' ','R','e','n','d','e','r','e','r',0},
1075         0x800000,
1076         {   {   REG_PINFLAG_B_RENDERER,
1077                 {   { &MEDIATYPE_Video, &GUID_NULL },
1078                     { NULL }
1079                 },
1080             },
1081             { 0xFFFFFFFF },
1082         }
1083     },
1084     {   &CLSID_VideoRendererDefault,
1085         &CLSID_LegacyAmFilterCategory,
1086         {'V','i','d','e','o',' ','R','e','n','d','e','r','e','r',0},
1087         0x800000,
1088         {   {   REG_PINFLAG_B_RENDERER,
1089                 {   { &MEDIATYPE_Video, &GUID_NULL },
1090                     { NULL }
1091                 },
1092             },
1093             { 0xFFFFFFFF },
1094         }
1095     },
1096     {   &CLSID_AVIDec,
1097         &CLSID_LegacyAmFilterCategory,
1098         {'A','V','I',' ','D','e','c','o','m','p','r','e','s','s','o','r',0},
1099         0x600000,
1100         {   {   0,
1101                 {   { &MEDIATYPE_Video, &GUID_NULL },
1102                     { NULL }
1103                 },
1104             },
1105             {   REG_PINFLAG_B_OUTPUT,
1106                 {   { &MEDIATYPE_Video, &GUID_NULL },
1107                     { NULL }
1108                 },
1109             },
1110             { 0xFFFFFFFF },
1111         }
1112     },
1113     {   &CLSID_AsyncReader,
1114         &CLSID_LegacyAmFilterCategory,
1115         {'F','i','l','e',' ','S','o','u','r','c','e',' ','(','A','s','y','n','c','.',')',0},
1116         0x400000,
1117         {   {   REG_PINFLAG_B_OUTPUT,
1118                 {   { &MEDIATYPE_Stream, &GUID_NULL },
1119                     { NULL }
1120                 },
1121             },
1122             { 0xFFFFFFFF },
1123         }
1124     },
1125     {   &CLSID_ACMWrapper,
1126         &CLSID_LegacyAmFilterCategory,
1127         {'A','C','M',' ','W','r','a','p','p','e','r',0},
1128         0x600000,
1129         {   {   0,
1130                 {   { &MEDIATYPE_Audio, &GUID_NULL },
1131                     { NULL }
1132                 },
1133             },
1134             {   REG_PINFLAG_B_OUTPUT,
1135                 {   { &MEDIATYPE_Audio, &GUID_NULL },
1136                     { NULL }
1137                 },
1138             },
1139             { 0xFFFFFFFF },
1140         }
1141     },
1142     {   &CLSID_WAVEParser,
1143         &CLSID_LegacyAmFilterCategory,
1144         {'W','a','v','e',' ','P','a','r','s','e','r',0},
1145         0x400000,
1146         {   {   0,
1147                 {   { &MEDIATYPE_Stream, &MEDIASUBTYPE_WAVE },
1148                     { &MEDIATYPE_Stream, &MEDIASUBTYPE_AU },
1149                     { &MEDIATYPE_Stream, &MEDIASUBTYPE_AIFF },
1150                     { NULL }
1151                 },
1152             },
1153             {   REG_PINFLAG_B_OUTPUT,
1154                 {   { &MEDIATYPE_Audio, &GUID_NULL },
1155                     { NULL }
1156                 },
1157             },
1158             { 0xFFFFFFFF },
1159         }
1160     },
1161     { NULL }            /* list terminator */
1162 };
1163
1164 /***********************************************************************
1165  *              DllRegisterServer (QUARTZ.@)
1166  */
1167 HRESULT WINAPI DllRegisterServer(void)
1168 {
1169     HRESULT hr;
1170
1171     TRACE("\n");
1172
1173     hr = register_coclasses(coclass_list);
1174     if (SUCCEEDED(hr))
1175         hr = register_interfaces(interface_list);
1176     if (SUCCEEDED(hr))
1177         hr = register_mediatypes_parsing(mediatype_parsing_list);
1178     if (SUCCEEDED(hr))
1179         hr = register_mediatypes_extension(mediatype_extension_list);
1180     if (SUCCEEDED(hr))
1181         hr = register_filters(filter_list);
1182     return hr;
1183 }
1184
1185 /***********************************************************************
1186  *              DllUnregisterServer (QUARTZ.@)
1187  */
1188 HRESULT WINAPI DllUnregisterServer(void)
1189 {
1190     HRESULT hr;
1191
1192     TRACE("\n");
1193
1194     hr = unregister_filters(filter_list);
1195     if (SUCCEEDED(hr))
1196         hr = unregister_coclasses(coclass_list);
1197     if (SUCCEEDED(hr))
1198         hr = unregister_interfaces(interface_list);
1199     if (SUCCEEDED(hr))
1200         hr = unregister_mediatypes_parsing(mediatype_parsing_list);
1201     if (SUCCEEDED(hr))
1202         hr = unregister_mediatypes_extension(mediatype_extension_list);
1203     return hr;
1204 }