Windows XP automatically tries to search when you click a folder

A friend of mine came to me with this issue, and after a bit of searching, I came across http://windowsxp.mvps.org/searchwindow.htm . Running "regsvr32 /i shell32.dll", as suggested by that site, fixed his problem, so I figured I'd repost it here, since it took me a while to find:

The following is from http://windowsxp.mvps.org/searchwindow.htm:

If you double-click a drive or folder, Search Companion may start and the drive or folder may not open. 'Search' will be the top most in the right-click context menu for a folder or drive. This usually happens if you've edited the File Folder or Drive via the Folder Options File Types dialog, in order to add a context-menu item such as "Command Prompt here", "Print Directory" feature for folders or drives.

References:
http://support.microsoft.com/?kbid=321379
http://support.microsoft.com/?kbid=321186

Quick fix

Click Start, Run and type this command:

regsvr32 /i shell32.dll
(Tip from David Candy)

To fix the problem manually, open Registry Editor and navigate to:

HKEY_CLASSES_ROOT\Directory\shell

-and-

HKEY_CLASSES_ROOT\Drive\shell

• In the right-pane, locate and click the (Default) value under the keys mentioned above

• Click Modify on the Edit menu.

• Type the word none in the Value data box, and then click OK.

• Exit Registry Editor.