看一下這一篇 -
http://windowsxp.mvps.org/context_folders.htm
基本上, 你要找的應該是在:
The context-menu entries for Files are built from the following registry locations:
[HKCR\<ProgID>\shellex\ContextMenuHandlers\]
[HKCR \*\shellex\ContextMenuHandlers\]
[HKCR\*\shell\]
[HKCR\AllFilesystemObjects\shellex\ContextMenuHandlers\]
To remove the WinZip related context-menu entries, you need to remove the entries here:
[HKCR\*\shellex\ContextMenuHandlers\WinZip]
Example: For Shortcuts (.lnk files), the context-menu is built from:
[HKCR\lnkfile\shellex\ContextMenuHandlers\]
[HKCR\exefile\shell\]
[HKCR\exefile\shellex\ContextMenuHandlers\]
[HKCR\AllFilesystemObjects\shell\]
[HKCR\*\shell\]
[HKCR\*\shellex\ContextMenuHandlers\]
[HKCR\AllFilesystemObjects\shellex\ContextMenuHandlers\]