COM Shim Wizard for IDTExtensibility (Shared Addins) Now Available for Visual Studio 2005

I've blogged before about the need for shimming non-VSTO shared managed add-ins.  Misha Shneerson and Andrew Whitechapel created a COM Shim Wizard that worked with Visual Studio 2003.  They've now updated the wizard and it is available on MSDN. 

Article URL:


You should use this shim wizard if you are building shared IDTExtensibility2 based add-ins for Office.  A shim gives you appdomain isolation and some other goodness. 

If you are developing add-ins for Outlook 2003, VSTO 2005 provides a better add-in project that you should use instead of Shared Add-ins.

If you are developing add-ins for Office 2007, the VSTO v3 CTP has add-in support for all the Office applications and so you won't need this COM Shim Wizard:

Want to work on the VSTO team?

Comments (1)
  1. XL-Dennis says:


    Excellent news – Send my best regards to Misha and Andrew!

    Kind regards,


Comments are closed.

Skip to main content