KB0114: How do I enable/disable think-cell and other Office COM add-ins in the Windows registry?

think-cell and other COM add-ins for Microsoft PowerPoint, Excel, Outlook and other Office components can be manually enabled and disabled modifying their entries in the Windows registry. Before opening the registry, close the respective Office application. In the following, we show an example for a PowerPoint add-in. For other Office components replace PowerPoint by the respective component name in the registry path.

1. To start regedit, go to
   • Start → Start Search in Windows Vista and Windows 7
   • Start → Run in Windows 2000 and XP
   Type regedit and press Enter.
2. if you are using a 32-bit operating system, navigate to

   HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Office\ →
   Powerpoint\Addins

   or

   HKEY_CURRENT_USER\Software\Microsoft\Office\ →
   Powerpoint\Addins

3. if you are using a 64-bit operating system, navigate to

   HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Microsoft\ →
   Office\Powerpoint\Addins

   or

   HKEY_CURRENT_USER\Software\Microsoft\ →
   Office\Powerpoint\Addins

4. click on the desired add-in
5. in the right window frame right click LoadBehavior
6. select Modify...
7. if you want to disable the add-in, enter '0'
8. to reenable the add-in set LoadBehavior to '3' (default value for think-cell COM add-ins) or to the previous value if known