Q. How can I use the registry to include all file types in a file system search under Windows XP?

A. To use the registry to include all file types in a file system search, perform the following steps:

1. Start a registry editor (e.g., regedit.exe).
2. Navigate to the HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\ContentIndex registry subkey.
3. Double-click FilterFilesWithUnknownExtensions, set the value to 1, then click OK.
4. Close the registry editor.

[via Steven's Notebook]