The OneLook IE right-click menu add-on does not interfere with any aspect of Internet Explorer's operation. However, if you wish to uninstall it, you can do so by following the steps below. (WARNING: Incorrect changes to the Windows Registry can result in permanent data loss or corrupted files. Please make sure you delete only the specified key. Please send feedback if you have any trouble following these instructions.)

Uninstall procedure:
  1. Click on your Windows "Start" button and select "Run..."
  2. Type "regedit" and hit enter. The Registry Editor program will appear
  3. On the left hand side of the screen you'll see a hierarchical list. Click until the following "key" is highlighted:
    My Computer >
      HKEY_CURRENT_USER >
        Microsoft >
         Internet Explorer >
           MenuExt >
             &Find Definitions...
    
  4. Make sure "&Find Definitions..." is highlighted. Hit the "delete" key and click "Yes" when the confirmation box appears.
  5. Restart Internet Explorer and the menu item should be gone.