When you attempt to enable or disable an Office Add-In, the following error message may be displayed and the Add-In state does not change.

This happens if the Office application you’re using is running under standard privileges, and hence cannot modify the Add-In startup state in the HKEY_LOCAL_MACHINE registry hive.
Windows Vista
To resolve the problem, start the Office application elevated. To do so, right-click on the Office application shortcut and choose Run as Administrator. Then open the Add-Ins dialog to enable or disable the registered Office Add-In.
Windows XP
Logon to an administrator account and then launch the Office application. Once the Add-In is enabled/disabled, logoff from the administrator account and proceed to your user account.
Using the Registry Editor
Alternately, you can change the Add-In startup state manually via the registry, by navigating to the Add-In registry location and modifying the LoadBehavior DWORD value manually.
Similarly, for Microsoft Excel:
To disable the Add-In, set the value data for LoadBehavior to 2.
Third-Party Tools
[OfficeIns from Nirsoft.net] OfficeIns (Office Add-ins Manager) is a small utility that displays the details of all installed Microsoft Office (Word, Excel, Outlook, and so on…) add-ins on your computer, and allows you to disable / enable them.
[Topalt EnableDisable] Topalt EnableDisable is simple and easy to use tool for enabling and disabling add-ins for Office. Disabling add-ins might be useful if your Office programs are running slow with the add-ins installed, you can disable them when you are not using them and enable when using.
Related Posts
- Office 2007 File Types DOCX, PPTX, XLSX Downloading as ZIP
- Script to Backup the Services Configuration (Startup Type) in Windows 7/XP/2003/Vista
- Free E-Book First Look: Microsoft Office 2010 From Microsoft Press
- Create PDF Files From Office 2007 Programs Using Microsoft Save as PDF or XPS Add-In
- How to Schedule a System State Backup in Windows XP Using NTBackup
If you enjoyed this post, make sure you subscribe to our RSS feed! We feature Tips, Troubleshooting information, Scripts and Utilities for Microsoft Windows Operating Systems!
Prefer an E-mail subscription?




