我的主要目的是为TortoiseCVS制作图标。很多建议对我不起作用:卸载，重新安装;通过重命名重新注册;重新启动多次。但是真正起作用的是安装TortoiseSVN。这使得TortoiseCVS的图标起作用。我查了注册表。SVN安装将数字放在图标名称前面:

[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\ShellIconOverlayIdentifiers]
1TortoiseNormal
2TortoiseModified
3TortoiseConflict
4TortoiseLocked
5TortoiseReadOnly
6TortoiseDeleted
7TortoiseAdded
8TortoiseIgnored
9TortoiseUnversioned
Groove Explorer Icon Overlay 1 (GFS Unread Stub)
Groove Explorer Icon Overlay 2 (GFS Stub)
Groove Explorer Icon Overlay 2.5 (GFS Unread Folder)
Groove Explorer Icon Overlay 3 (GFS Folder)
Groove Explorer Icon Overlay 4 (GFS Unread Mark)
SharingPrivate
TortoiseAdded
TortoiseConflict
TortoiseDeleted
TortoiseIgnored
TortoiseLocked
TortoiseModified
TortoiseNormal
TortoiseReadOnly
TortoiseUnversioned
zEnhancedStorageShell
zOffline Files
zSkyDrivePro1 (ErrorConflict)
zSkyDrivePro2 (SyncInProgress)
zSkyDrivePro3 (InSync)

它们在这里陈列得很好。你是否同时使用64位版本的Windows 7和32位版本的TortoiseSVN?如果是，那么它们将只显示在32位资源管理器中(或32位应用程序的cfd中)。不过，您可以同时安装32位和64位版本。

可能出现的问题和解决方案

Windows限制可用的覆盖图标的数量，参考Kris Erickson的回答。 TortoiseSVN设置不当，参考Ralph Cowling的回答。 从早期版本(1.6.10之前)更新的已知错误，请参阅这里。 TortoiseSVN并不是为所有用户安装的，尝试像下面这样用cmd安装，如果下面三个解决方案都不工作，我相信这个方法会挽救你的生命。

rem Set your own path.
set TOOL_ROOT=d:\Tools\TortoiseSVN-1.6.13.20954-win32-svn-1.6.16\tortoisesvn_1.6.16.21511
set PACKAGENAME=TortoiseSVN-1.6.16.21511-x64-svn-1.6.17.msi
set TOOL_INSTALLROOT="c:\Program Files (x86)\TortoiseSVN"

msiexec /i "%TOOL_ROOT%\%PACKAGENAME%" INSTALLDIR=%TOOL_INSTALLROOT% ALLUSERS=1 ARPSYSTEMCOMPONENT=1 RebootYesNo=No REBOOT=ReallySupress /qb-

set ret=%ERRORLEVEL%

rem The installer seems to return same values as MSI
rem These codes mean that the product is properly installed, even though the code is not zero.
rem 1641 ERROR_SUCCESS_REBOOT_INITIATED
rem 3010 ERROR_SUCCESS_REBOOT_REQUIRED
if %ret% EQU 1641 set ret=0
if %ret% EQU 3010 set ret=0
if %ret% GTR 0 exit %ret%

为了完成Johannes的回答，你可以检查这个线程，其中提到了另一个原因(第一个原因是安装32位客户端而不是64位客户端)(强调我的):

只有最新版本的TSVN和TCVS能够共享覆盖图标，并且由于资源管理器有14个覆盖图像和无关的覆盖图标的限制 只是不出现你可能有太多… 如果它的覆盖图标显示，你必须实际使用 32位的Windows资源管理器，这当然意味着你也必须这样做 安装32位版本的TSVN。

在安装TortoiseVCS时可能会出现这个问题，因为:

Looking at what got installed in the filesystem and the registry, it looks like they tried to do what I do with my Shell extensions - install both 64 and 32 -bit versions, so that nobody says "I don't see my overlays/menus"! ;) Unfortunately, it looks like the registry entries for 32-bit got hosed, so the 32-bit extension DLL, even though present, does not have the correct registry entries. If in doubt I suggest to deinstall TCVS and TSVN. Then install TSVN. Maybe after installation reboot twice, not only once. And if they still don't show up go to software control panel and choose to repair the installation. That did the trick for me with when upgrading from the previous to the current version. You should probably install the TortoiseXYZ variant you plan to use mainly first, to improve its chances to fall into one of those limited number of overlay icons slots before the TortoiseXYZ variant you use less. Always keep these limited number of overlay icon slots in mind when trying to analyze malfunctions.

我建议向微软投诉图标覆盖限制低得离谱。如果我们有足够多的人抱怨，也许他们会解决这个问题的真正根源:

查看页面底部的评论: http://msdn.microsoft.com/en-us/library/cc144123 (VS.85) . aspx

给微软Windows 7团队关于这个问题的反馈: http://mymfe.microsoft.com/Windows%207/Feedback.aspx?formID=195

如果有人需要64位Windows 7的注册表项，这里有。对我有好处的是删除不经常使用的项目的覆盖:Drop Box，谷歌Drive，微软产品，只保留乌龟的覆盖。这些都是覆盖-没有被删除。

**注意**玩弄注册表会使您的系统不稳定。一定要备份您的注册表。关于备份注册表或注册表设置的各种方法，请参阅谷歌搜索。

    Windows Registry Editor Version 5.00

    [HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\ShellIconOverlayIdentifiers]

    [HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\ShellIconOverlayIdentifiers\ AccExtIco1]

    [HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\ShellIconOverlayIdentifiers\ AccExtIco2]

    [HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\ShellIconOverlayIdentifiers\ AccExtIco3]

    [HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\ShellIconOverlayIdentifiers\ SkyDrivePro1 (ErrorConflict)]
    @="{8BA85C75-763B-4103-94EB-9470F12FE0F7}"

    [HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\ShellIconOverlayIdentifiers\ SkyDrivePro2 (SyncInProgress)]
    @="{CD55129A-B1A1-438E-A425-CEBC7DC684EE}"

    [HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\ShellIconOverlayIdentifiers\ SkyDrivePro3 (InSync)]
    @="{E768CD3B-BDDC-436D-9C13-E1B39CA257B1}"

    [HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\ShellIconOverlayIdentifiers\"DropboxExt1"]
    @="{FB314ED9-A251-47B7-93E1-CDD82E34AF8B}"

    [HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\ShellIconOverlayIdentifiers\"DropboxExt2"]
    @="{FB314EDA-A251-47B7-93E1-CDD82E34AF8B}"

    [HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\ShellIconOverlayIdentifiers\"DropboxExt3"]
    @="{FB314EDD-A251-47B7-93E1-CDD82E34AF8B}"

    [HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\ShellIconOverlayIdentifiers\"DropboxExt4"]
    @="{FB314EDE-A251-47B7-93E1-CDD82E34AF8B}"

    [HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\ShellIconOverlayIdentifiers\"DropboxExt5"]
    @="{FB314EDB-A251-47B7-93E1-CDD82E34AF8B}"

    [HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\ShellIconOverlayIdentifiers\"DropboxExt6"]
    @="{FB314EDF-A251-47B7-93E1-CDD82E34AF8B}"

    [HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\ShellIconOverlayIdentifiers\"DropboxExt7"]
    @="{FB314EDC-A251-47B7-93E1-CDD82E34AF8B}"

    [HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\ShellIconOverlayIdentifiers\"DropboxExt8"]
    @="{FB314EE0-A251-47B7-93E1-CDD82E34AF8B}"

    [HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\ShellIconOverlayIdentifiers\00avast]
    @="{472083B0-C522-11CF-8763-00608CC02F24}"

    [HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\ShellIconOverlayIdentifiers\1EldosIconOverlay]
    @="{AF743E58-5357-404B-8314-32D2D8420F9D}"

    [HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\ShellIconOverlayIdentifiers\1TortoiseNormal]
    @="{C5994560-53D9-4125-87C9-F193FC689CB2}"

    [HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\ShellIconOverlayIdentifiers\2TortoiseModified]
    @="{C5994561-53D9-4125-87C9-F193FC689CB2}"

    [HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\ShellIconOverlayIdentifiers\3TortoiseConflict]
    @="{C5994562-53D9-4125-87C9-F193FC689CB2}"

    [HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\ShellIconOverlayIdentifiers\4TortoiseLocked]
    @="{C5994563-53D9-4125-87C9-F193FC689CB2}"

    [HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\ShellIconOverlayIdentifiers\5TortoiseReadOnly]
    @="{C5994564-53D9-4125-87C9-F193FC689CB2}"

    [HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\ShellIconOverlayIdentifiers\6TortoiseDeleted]
    @="{C5994565-53D9-4125-87C9-F193FC689CB2}"

    [HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\ShellIconOverlayIdentifiers\7TortoiseAdded]
    @="{C5994566-53D9-4125-87C9-F193FC689CB2}"

    [HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\ShellIconOverlayIdentifiers\8TortoiseIgnored]
    @="{C5994567-53D9-4125-87C9-F193FC689CB2}"

    [HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\ShellIconOverlayIdentifiers\9TortoiseUnversioned]
    @="{C5994568-53D9-4125-87C9-F193FC689CB2}"

    [HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\ShellIconOverlayIdentifiers\EldosIconOverlay]
    @="{5BB532A2-BF14-4CCC-86B7-71B81EF6F8BC}"

    [HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\ShellIconOverlayIdentifiers\EnhancedStorageShell]
    @="{D9144DCD-E998-4ECA-AB6A-DCD83CCBA16D}"

    [HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\ShellIconOverlayIdentifiers\GDriveBlacklistedOverlay]
    @="{81539FE6-33C7-4CE7-90C7-1C7B8F2F2D42}"

    [HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\ShellIconOverlayIdentifiers\GDriveSharedEditOverlay]
    @="{81539FE6-33C7-4CE7-90C7-1C7B8F2F2D44}"

    [HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\ShellIconOverlayIdentifiers\GDriveSharedViewOverlay]
    @="{81539FE6-33C7-4CE7-90C7-1C7B8F2F2D43}"

    [HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\ShellIconOverlayIdentifiers\GDriveSyncedOverlay]
    @="{81539FE6-33C7-4CE7-90C7-1C7B8F2F2D40}"

    [HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\ShellIconOverlayIdentifiers\GDriveSyncingOverlay]
    @="{81539FE6-33C7-4CE7-90C7-1C7B8F2F2D41}"

    [HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\ShellIconOverlayIdentifiers\off0]
    @="{8E33AEC3-C5F2-43C4-B048-9E3EB19B1DD5}"

    [HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\ShellIconOverlayIdentifiers\off1]
    @="{8E33AEC4-C5F2-43C4-B048-9E3EB19B1DD5}"

    [HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\ShellIconOverlayIdentifiers\Offline Files]
    @="{4E77131D-3629-431c-9818-C5679DC83E81}"

    [HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\ShellIconOverlayIdentifiers\SharingPrivate]
    @="{08244EE6-92F0-47f2-9FC9-929BAA2E7235}"

记住，这些都是64位的Windows，你应该备份你的注册表