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diff_ext_for_kdiff3.dll - Vista start menu would not launch many programs

The Vista start menu would not launch many programs, particularly those from Microsoft Office, by typing in the name of the program. Instead you had to navigate to "All Programs", "Microsoft office", etc. Removing kdiff solved that problem.

The details of the shell extension that might cause the problem:

Shell Extension Name: diff-ext-for-kdiff3
Filename: diff_ext_for_kdiff3.dll
Description: diff shell extension
Product Name: Diff Context Menu Extension
File Version: Release 1.6.1
CLSID: {9F8528E4-AB20-456E-84E5-3CE69D8720F3}

If you think that you have similar problem in your system, you can try to fix the problem by disabling the specified shell extension. In order to do that, simply follow the instructions below:

  1. Download and run the ShellExView utility from this Web page.
  2. Find the right shell extension according the details specified above.
  3. Select this shell extension and press F7 to disable this extension. After disabling the shell extension, check if the problem still occurs. If the problem still occurs, you should enable back the shell extension by pressing F8, and then try to search for another shell extension that might cause your problem.

This shell extension problem was reported by carteriii