2 * self-registerable dll functions for shell32.dll
4 * Copyright (C) 2003 John K. Hohm
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.
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.
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
34 #include "shell32_main.h"
39 #include "wine/debug.h"
41 WINE_DEFAULT_DEBUG_CHANNEL(ole);
44 * Near the bottom of this file are the exported DllRegisterServer and
45 * DllUnregisterServer, which make all this worthwhile.
48 /***********************************************************************
49 * interface for self-registering
51 struct regsvr_interface
53 IID const *iid; /* NULL for end of list */
54 LPCSTR name; /* can be NULL to omit */
55 IID const *base_iid; /* can be NULL to omit */
56 int num_methods; /* can be <0 to omit */
57 CLSID const *ps_clsid; /* can be NULL to omit */
58 CLSID const *ps_clsid32; /* can be NULL to omit */
61 static HRESULT register_interfaces(struct regsvr_interface const *list);
62 static HRESULT unregister_interfaces(struct regsvr_interface const *list);
66 CLSID const *clsid; /* NULL for end of list */
67 LPCSTR name; /* can be NULL to omit */
68 UINT idName; /* can be 0 to omit */
69 LPCSTR ips; /* can be NULL to omit */
70 LPCSTR ips32; /* can be NULL to omit */
71 LPCSTR ips32_tmodel; /* can be NULL to omit */
74 DWORD dwCallForAttributes;
75 LPCSTR clsid_str; /* can be NULL to omit */
76 LPCSTR progid; /* can be NULL to omit */
77 UINT idDefaultIcon; /* can be 0 to omit */
80 /* flags for regsvr_coclass.flags */
81 #define SHELLEX_MAYCHANGEDEFAULTMENU 0x00000001
82 #define SHELLFOLDER_WANTSFORPARSING 0x00000002
83 #define SHELLFOLDER_WANTSFORDISPLAY 0x00000004
84 #define SHELLFOLDER_ATTRIBUTES 0x00000008
85 #define SHELLFOLDER_CALLFORATTRIBUTES 0x00000010
86 #define SHELLFOLDER_HIDEASDELETE 0x00000020
88 static HRESULT register_coclasses(struct regsvr_coclass const *list);
89 static HRESULT unregister_coclasses(struct regsvr_coclass const *list);
91 struct regsvr_namespace
93 CLSID const *clsid; /* CLSID of the namespace extension. NULL for end of list */
94 LPCWSTR parent; /* Mount point (MyComputer, Desktop, ..). */
95 LPCWSTR value; /* Display name of the extension. */
98 static HRESULT register_namespace_extensions(struct regsvr_namespace const *list);
99 static HRESULT unregister_namespace_extensions(struct regsvr_namespace const *list);
101 /***********************************************************************
102 * static string constants
104 static WCHAR const interface_keyname[10] = {
105 'I', 'n', 't', 'e', 'r', 'f', 'a', 'c', 'e', 0 };
106 static WCHAR const base_ifa_keyname[14] = {
107 'B', 'a', 's', 'e', 'I', 'n', 't', 'e', 'r', 'f', 'a', 'c',
109 static WCHAR const num_methods_keyname[11] = {
110 'N', 'u', 'm', 'M', 'e', 't', 'h', 'o', 'd', 's', 0 };
111 static WCHAR const ps_clsid_keyname[15] = {
112 'P', 'r', 'o', 'x', 'y', 'S', 't', 'u', 'b', 'C', 'l', 's',
114 static WCHAR const ps_clsid32_keyname[17] = {
115 'P', 'r', 'o', 'x', 'y', 'S', 't', 'u', 'b', 'C', 'l', 's',
116 'i', 'd', '3', '2', 0 };
117 static WCHAR const clsid_keyname[6] = {
118 'C', 'L', 'S', 'I', 'D', 0 };
119 static WCHAR const ips_keyname[13] = {
120 'I', 'n', 'P', 'r', 'o', 'c', 'S', 'e', 'r', 'v', 'e', 'r',
122 static WCHAR const ips32_keyname[15] = {
123 'I', 'n', 'P', 'r', 'o', 'c', 'S', 'e', 'r', 'v', 'e', 'r',
125 static WCHAR const progid_keyname[7] = {
126 'P', 'r', 'o', 'g', 'I', 'D', 0 };
127 static WCHAR const shellex_keyname[8] = {
128 's', 'h', 'e', 'l', 'l', 'e', 'x', 0 };
129 static WCHAR const shellfolder_keyname[12] = {
130 'S', 'h', 'e', 'l', 'l', 'F', 'o', 'l', 'd', 'e', 'r', 0 };
131 static WCHAR const mcdm_keyname[21] = {
132 'M', 'a', 'y', 'C', 'h', 'a', 'n', 'g', 'e', 'D', 'e', 'f',
133 'a', 'u', 'l', 't', 'M', 'e', 'n', 'u', 0 };
134 static WCHAR const defaulticon_keyname[] = {
135 'D','e','f','a','u','l','t','I','c','o','n',0};
136 static char const tmodel_valuename[] = "ThreadingModel";
137 static char const wfparsing_valuename[] = "WantsFORPARSING";
138 static char const wfdisplay_valuename[] = "WantsFORDISPLAY";
139 static char const attributes_valuename[] = "Attributes";
140 static char const cfattributes_valuename[] = "CallForAttributes";
141 static char const localized_valuename[] = "LocalizedString";
142 static char const hideasdelete_valuename[] = "HideAsDeletePerUser";
144 /***********************************************************************
145 * static helper functions
147 static LONG register_key_guid(HKEY base, WCHAR const *name, GUID const *guid);
148 static LONG register_key_defvalueW(HKEY base, WCHAR const *name,
150 static LONG register_key_defvalueA(HKEY base, WCHAR const *name,
153 /***********************************************************************
154 * register_interfaces
156 static HRESULT register_interfaces(struct regsvr_interface const *list)
158 LONG res = ERROR_SUCCESS;
161 res = RegCreateKeyExW(HKEY_CLASSES_ROOT, interface_keyname, 0, NULL, 0,
162 KEY_READ | KEY_WRITE, NULL, &interface_key, NULL);
163 if (res != ERROR_SUCCESS) goto error_return;
165 for (; res == ERROR_SUCCESS && list->iid; ++list) {
169 StringFromGUID2(list->iid, buf, 39);
170 res = RegCreateKeyExW(interface_key, buf, 0, NULL, 0,
171 KEY_READ | KEY_WRITE, NULL, &iid_key, NULL);
172 if (res != ERROR_SUCCESS) goto error_close_interface_key;
175 res = RegSetValueExA(iid_key, NULL, 0, REG_SZ,
176 (CONST BYTE*)(list->name),
177 strlen(list->name) + 1);
178 if (res != ERROR_SUCCESS) goto error_close_iid_key;
181 if (list->base_iid) {
182 res = register_key_guid(iid_key, base_ifa_keyname, list->base_iid);
183 if (res != ERROR_SUCCESS) goto error_close_iid_key;
186 if (0 <= list->num_methods) {
187 static WCHAR const fmt[3] = { '%', 'd', 0 };
190 res = RegCreateKeyExW(iid_key, num_methods_keyname, 0, NULL, 0,
191 KEY_READ | KEY_WRITE, NULL, &key, NULL);
192 if (res != ERROR_SUCCESS) goto error_close_iid_key;
194 wsprintfW(buf, fmt, list->num_methods);
195 res = RegSetValueExW(key, NULL, 0, REG_SZ,
197 (lstrlenW(buf) + 1) * sizeof(WCHAR));
200 if (res != ERROR_SUCCESS) goto error_close_iid_key;
203 if (list->ps_clsid) {
204 res = register_key_guid(iid_key, ps_clsid_keyname, list->ps_clsid);
205 if (res != ERROR_SUCCESS) goto error_close_iid_key;
208 if (list->ps_clsid32) {
209 res = register_key_guid(iid_key, ps_clsid32_keyname, list->ps_clsid32);
210 if (res != ERROR_SUCCESS) goto error_close_iid_key;
214 RegCloseKey(iid_key);
217 error_close_interface_key:
218 RegCloseKey(interface_key);
220 return res != ERROR_SUCCESS ? HRESULT_FROM_WIN32(res) : S_OK;
223 /***********************************************************************
224 * unregister_interfaces
226 static HRESULT unregister_interfaces(struct regsvr_interface const *list)
228 LONG res = ERROR_SUCCESS;
231 res = RegOpenKeyExW(HKEY_CLASSES_ROOT, interface_keyname, 0,
232 KEY_READ | KEY_WRITE, &interface_key);
233 if (res == ERROR_FILE_NOT_FOUND) return S_OK;
234 if (res != ERROR_SUCCESS) goto error_return;
236 for (; res == ERROR_SUCCESS && list->iid; ++list) {
239 StringFromGUID2(list->iid, buf, 39);
240 res = RegDeleteTreeW(interface_key, buf);
241 if (res == ERROR_FILE_NOT_FOUND) res = ERROR_SUCCESS;
244 RegCloseKey(interface_key);
246 return res != ERROR_SUCCESS ? HRESULT_FROM_WIN32(res) : S_OK;
249 /***********************************************************************
252 static HRESULT register_coclasses(struct regsvr_coclass const *list)
254 LONG res = ERROR_SUCCESS;
257 res = RegCreateKeyExW(HKEY_CLASSES_ROOT, clsid_keyname, 0, NULL, 0,
258 KEY_READ | KEY_WRITE, NULL, &coclass_key, NULL);
259 if (res != ERROR_SUCCESS) goto error_return;
261 for (; res == ERROR_SUCCESS && list->clsid; ++list) {
265 StringFromGUID2(list->clsid, buf, 39);
266 res = RegCreateKeyExW(coclass_key, buf, 0, NULL, 0,
267 KEY_READ | KEY_WRITE, NULL, &clsid_key, NULL);
268 if (res != ERROR_SUCCESS) goto error_close_coclass_key;
271 res = RegSetValueExA(clsid_key, NULL, 0, REG_SZ,
272 (CONST BYTE*)(list->name),
273 strlen(list->name) + 1);
274 if (res != ERROR_SUCCESS) goto error_close_clsid_key;
279 sprintf(buffer, "@shell32.dll,-%u", list->idName);
280 res = RegSetValueExA(clsid_key, localized_valuename, 0, REG_SZ,
281 (CONST BYTE*)(buffer), strlen(buffer)+1);
282 if (res != ERROR_SUCCESS) goto error_close_clsid_key;
285 if (list->idDefaultIcon) {
289 res = RegCreateKeyExW(clsid_key, defaulticon_keyname, 0, NULL, 0,
290 KEY_READ | KEY_WRITE, NULL, &icon_key, NULL);
291 if (res != ERROR_SUCCESS) goto error_close_clsid_key;
293 sprintf(buffer, "shell32.dll,-%u", list->idDefaultIcon);
294 res = RegSetValueExA(icon_key, NULL, 0, REG_SZ,
295 (CONST BYTE*)(buffer), strlen(buffer)+1);
296 RegCloseKey(icon_key);
297 if (res != ERROR_SUCCESS) goto error_close_clsid_key;
301 res = register_key_defvalueA(clsid_key, ips_keyname, list->ips);
302 if (res != ERROR_SUCCESS) goto error_close_clsid_key;
308 res = RegCreateKeyExW(clsid_key, ips32_keyname, 0, NULL, 0,
309 KEY_READ | KEY_WRITE, NULL,
311 if (res != ERROR_SUCCESS) goto error_close_clsid_key;
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;
324 if (list->flags & SHELLEX_MAYCHANGEDEFAULTMENU) {
325 HKEY shellex_key, mcdm_key;
327 res = RegCreateKeyExW(clsid_key, shellex_keyname, 0, NULL, 0,
328 KEY_READ | KEY_WRITE, NULL,
330 if (res != ERROR_SUCCESS) goto error_close_clsid_key;
331 res = RegCreateKeyExW(shellex_key, mcdm_keyname, 0, NULL, 0,
332 KEY_READ | KEY_WRITE, NULL,
334 RegCloseKey(shellex_key);
335 if (res != ERROR_SUCCESS) goto error_close_clsid_key;
336 RegCloseKey(mcdm_key);
340 (SHELLFOLDER_WANTSFORPARSING|SHELLFOLDER_WANTSFORDISPLAY|SHELLFOLDER_ATTRIBUTES|SHELLFOLDER_CALLFORATTRIBUTES|SHELLFOLDER_HIDEASDELETE))
342 HKEY shellfolder_key;
344 res = RegCreateKeyExW(clsid_key, shellfolder_keyname, 0, NULL, 0,
345 KEY_READ | KEY_WRITE, NULL,
346 &shellfolder_key, NULL);
347 if (res != ERROR_SUCCESS) goto error_close_clsid_key;
348 if (list->flags & SHELLFOLDER_WANTSFORPARSING)
349 res = RegSetValueExA(shellfolder_key, wfparsing_valuename, 0, REG_SZ, (const BYTE *)"", 1);
350 if (list->flags & SHELLFOLDER_WANTSFORDISPLAY)
351 res = RegSetValueExA(shellfolder_key, wfdisplay_valuename, 0, REG_SZ, (const BYTE *)"", 1);
352 if (list->flags & SHELLFOLDER_HIDEASDELETE)
353 res = RegSetValueExA(shellfolder_key, hideasdelete_valuename, 0, REG_SZ, (const BYTE *)"", 1);
354 if (list->flags & SHELLFOLDER_ATTRIBUTES)
355 res = RegSetValueExA(shellfolder_key, attributes_valuename, 0, REG_DWORD,
356 (const BYTE *)&list->dwAttributes, sizeof(DWORD));
357 if (list->flags & SHELLFOLDER_CALLFORATTRIBUTES)
358 res = RegSetValueExA(shellfolder_key, cfattributes_valuename, 0, REG_DWORD,
359 (const BYTE *)&list->dwCallForAttributes, sizeof(DWORD));
360 RegCloseKey(shellfolder_key);
361 if (res != ERROR_SUCCESS) goto error_close_clsid_key;
364 if (list->clsid_str) {
365 res = register_key_defvalueA(clsid_key, clsid_keyname,
367 if (res != ERROR_SUCCESS) goto error_close_clsid_key;
373 res = register_key_defvalueA(clsid_key, progid_keyname,
375 if (res != ERROR_SUCCESS) goto error_close_clsid_key;
377 res = RegCreateKeyExA(HKEY_CLASSES_ROOT, list->progid, 0,
378 NULL, 0, KEY_READ | KEY_WRITE, NULL,
380 if (res != ERROR_SUCCESS) goto error_close_clsid_key;
382 res = register_key_defvalueW(progid_key, clsid_keyname, buf);
383 RegCloseKey(progid_key);
384 if (res != ERROR_SUCCESS) goto error_close_clsid_key;
387 error_close_clsid_key:
388 RegCloseKey(clsid_key);
391 error_close_coclass_key:
392 RegCloseKey(coclass_key);
394 return res != ERROR_SUCCESS ? HRESULT_FROM_WIN32(res) : S_OK;
397 /***********************************************************************
398 * unregister_coclasses
400 static HRESULT unregister_coclasses(struct regsvr_coclass const *list)
402 LONG res = ERROR_SUCCESS;
405 res = RegOpenKeyExW(HKEY_CLASSES_ROOT, clsid_keyname, 0,
406 KEY_READ | KEY_WRITE, &coclass_key);
407 if (res == ERROR_FILE_NOT_FOUND) return S_OK;
408 if (res != ERROR_SUCCESS) goto error_return;
410 for (; res == ERROR_SUCCESS && list->clsid; ++list) {
413 StringFromGUID2(list->clsid, buf, 39);
414 res = RegDeleteTreeW(coclass_key, buf);
415 if (res == ERROR_FILE_NOT_FOUND) res = ERROR_SUCCESS;
416 if (res != ERROR_SUCCESS) goto error_close_coclass_key;
419 res = RegDeleteTreeA(HKEY_CLASSES_ROOT, list->progid);
420 if (res == ERROR_FILE_NOT_FOUND) res = ERROR_SUCCESS;
421 if (res != ERROR_SUCCESS) goto error_close_coclass_key;
425 error_close_coclass_key:
426 RegCloseKey(coclass_key);
428 return res != ERROR_SUCCESS ? HRESULT_FROM_WIN32(res) : S_OK;
431 /**********************************************************************
432 * register_namespace_extensions
434 static WCHAR *get_namespace_key(struct regsvr_namespace const *list) {
435 static const WCHAR wszExplorerKey[] = {
436 'S','o','f','t','w','a','r','e','\\','M','i','c','r','o','s','o','f','t','\\',
437 'W','i','n','d','o','w','s','\\','C','u','r','r','e','n','t','V','e','r','s','i','o','n','\\',
438 'E','x','p','l','o','r','e','r','\\',0 };
439 static const WCHAR wszNamespace[] = { '\\','N','a','m','e','s','p','a','c','e','\\',0 };
440 WCHAR *pwszKey, *pwszCLSID;
442 pwszKey = HeapAlloc(GetProcessHeap(), 0, sizeof(wszExplorerKey)+sizeof(wszNamespace)+
443 sizeof(WCHAR)*(lstrlenW(list->parent)+CHARS_IN_GUID));
447 lstrcpyW(pwszKey, wszExplorerKey);
448 lstrcatW(pwszKey, list->parent);
449 lstrcatW(pwszKey, wszNamespace);
450 if (FAILED(StringFromCLSID(list->clsid, &pwszCLSID))) {
451 HeapFree(GetProcessHeap(), 0, pwszKey);
454 lstrcatW(pwszKey, pwszCLSID);
455 CoTaskMemFree(pwszCLSID);
460 static HRESULT register_namespace_extensions(struct regsvr_namespace const *list) {
464 for (; list->clsid; list++) {
465 pwszKey = get_namespace_key(list);
467 /* Create the key and set the value. */
468 if (pwszKey && ERROR_SUCCESS ==
469 RegCreateKeyExW(HKEY_LOCAL_MACHINE, pwszKey, 0, NULL, 0, KEY_WRITE, NULL, &hKey, NULL))
471 RegSetValueExW(hKey, NULL, 0, REG_SZ, (const BYTE *)list->value, sizeof(WCHAR)*(lstrlenW(list->value)+1));
475 HeapFree(GetProcessHeap(), 0, pwszKey);
480 static HRESULT unregister_namespace_extensions(struct regsvr_namespace const *list) {
483 for (; list->clsid; list++) {
484 pwszKey = get_namespace_key(list);
485 RegDeleteKeyW(HKEY_LOCAL_MACHINE, pwszKey);
486 HeapFree(GetProcessHeap(), 0, pwszKey);
491 /***********************************************************************
494 static LONG register_key_guid(HKEY base, WCHAR const *name, GUID const *guid)
498 StringFromGUID2(guid, buf, 39);
499 return register_key_defvalueW(base, name, buf);
502 /***********************************************************************
503 * regsvr_key_defvalueW
505 static LONG register_key_defvalueW(
513 res = RegCreateKeyExW(base, name, 0, NULL, 0,
514 KEY_READ | KEY_WRITE, NULL, &key, NULL);
515 if (res != ERROR_SUCCESS) return res;
516 res = RegSetValueExW(key, NULL, 0, REG_SZ, (CONST BYTE*)value,
517 (lstrlenW(value) + 1) * sizeof(WCHAR));
522 /***********************************************************************
523 * regsvr_key_defvalueA
525 static LONG register_key_defvalueA(
533 res = RegCreateKeyExW(base, name, 0, NULL, 0,
534 KEY_READ | KEY_WRITE, NULL, &key, NULL);
535 if (res != ERROR_SUCCESS) return res;
536 res = RegSetValueExA(key, NULL, 0, REG_SZ, (CONST BYTE*)value,
537 lstrlenA(value) + 1);
542 /***********************************************************************
545 static GUID const CLSID_Desktop = {
546 0x00021400, 0x0000, 0x0000, {0xC0,0x00,0x00,0x00,0x00,0x00,0x00,0x46} };
548 static GUID const CLSID_Shortcut = {
549 0x00021401, 0x0000, 0x0000, {0xC0,0x00,0x00,0x00,0x00,0x00,0x00,0x46} };
551 static struct regsvr_coclass const coclass_list[] = {
559 { &CLSID_DragDropHelper,
560 "Shell Drag and Drop Helper",
573 { &CLSID_NetworkPlaces,
586 SHELLEX_MAYCHANGEDEFAULTMENU
588 { &CLSID_AutoComplete,
601 SHELLFOLDER_WANTSFORPARSING
603 { &CLSID_UnixDosFolder,
609 SHELLFOLDER_WANTSFORPARSING|SHELLFOLDER_ATTRIBUTES|SHELLFOLDER_CALLFORATTRIBUTES,
610 SFGAO_FILESYSANCESTOR|SFGAO_FOLDER|SFGAO_HASSUBFOLDER,
613 { &CLSID_FolderShortcut,
619 SHELLFOLDER_ATTRIBUTES|SHELLFOLDER_CALLFORATTRIBUTES,
620 SFGAO_FILESYSTEM|SFGAO_FOLDER|SFGAO_LINK,
621 SFGAO_HASSUBFOLDER|SFGAO_FILESYSTEM|SFGAO_FOLDER|SFGAO_FILESYSANCESTOR
623 { &CLSID_MyDocuments,
629 SHELLFOLDER_WANTSFORPARSING|SHELLFOLDER_ATTRIBUTES|SHELLFOLDER_CALLFORATTRIBUTES,
630 SFGAO_FILESYSANCESTOR|SFGAO_FOLDER|SFGAO_HASSUBFOLDER,
635 IDS_RECYCLEBIN_FOLDER_NAME,
639 SHELLFOLDER_ATTRIBUTES,
640 SFGAO_FOLDER|SFGAO_DROPTARGET|SFGAO_HASPROPSHEET,
644 IDI_SHELL_FULL_RECYCLE_BIN
646 { &CLSID_ShellFSFolder,
647 "Shell File System Folder",
653 { &CLSID_ShellFolderViewOC,
654 "Microsoft Shell Folder View Router",
660 { &CLSID_ControlPanel,
666 SHELLFOLDER_WANTSFORDISPLAY|SHELLFOLDER_ATTRIBUTES|SHELLFOLDER_HIDEASDELETE,
667 SFGAO_FOLDER|SFGAO_HASSUBFOLDER,
669 { NULL } /* list terminator */
672 /***********************************************************************
676 static struct regsvr_interface const interface_list[] = {
677 { NULL } /* list terminator */
680 /***********************************************************************
681 * namespace extensions list
683 static const WCHAR wszDesktop[] = { 'D','e','s','k','t','o','p',0 };
684 static const WCHAR wszSlash[] = { '/', 0 };
685 static const WCHAR wszMyDocuments[] = { 'M','y',' ','D','o','c','u','m','e','n','t','s', 0 };
686 static const WCHAR wszRecycleBin[] = { 'T','r','a','s','h', 0 };
687 static const WCHAR wszMyComputer[] = { 'M','y','C','o','m','p','u','t','e','r', 0 };
688 static const WCHAR wszControlPanel[] = { 'C','o','n','t','r','o','l',' ','P','a','n','e','l', 0 };
690 static struct regsvr_namespace const namespace_extensions_list[] = {
692 &CLSID_UnixDosFolder,
714 /***********************************************************************
715 * DllRegisterServer (SHELL32.@)
717 HRESULT WINAPI DllRegisterServer(void)
723 hr = register_coclasses(coclass_list);
725 hr = register_interfaces(interface_list);
727 hr = SHELL_RegisterShellFolders();
729 hr = register_namespace_extensions(namespace_extensions_list);
733 /***********************************************************************
734 * DllUnregisterServer (SHELL32.@)
736 HRESULT WINAPI DllUnregisterServer(void)
742 hr = unregister_coclasses(coclass_list);
744 hr = unregister_interfaces(interface_list);
746 hr = unregister_namespace_extensions(namespace_extensions_list);