CODEWITHSUNDEEP
c#vstoadd-in
Sumit Pannu
Sumit Pannu

Reputation: 177

Outlook Add-in not loading in 64bit OS and MS Office 2007

I have created a Installer for my Outlook add-in. It works fine on windows 8 and windows 7 with both 64 bit OS and 32 bit OS and office 2010 and 2013. My problem is with windows 7(64-bit) and MS Office 2007.

Registry entry is created fine in the location :

HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Microsoft\Office\Outlook\Addins\myAddin

Also load behavior is 3 Load behavior is 3 when outlook is opened first time. But I noticed one more thing that if i go into inactive add-ins and try to activate my add-in then the load behavior changes to zero.

I have also checked "VSTO_SUPPRESSDISPLAYALERTS" for any vsto error messages or exception but no exceptions are there. Please help me out. Thanks in advance

Upvotes: 0

Views: 932

Answers (2)

Sumit Pannu
Sumit Pannu

Reputation: 177

I found only one solution to my situation without installing office 2007 SP2 and SP3.. That is HLKM to HKCU registry replication given on following link: 

http://stackoverflow.com/questions/4819389/c-sharp-vsto-outlook-2007-strange-difference-between-hklm-and-hkcu?rq=1

http://blogs.msdn.com/b/mshneer/archive/2007/09/04/deploying-your-vsto-add-in-to-all-users-part-i.aspx
http://blogs.msdn.com/b/mshneer/archive/2007/09/05/deploying-your-vsto-add-in-to-all-users-part-ii.aspx

Upvotes: 0

Oliver
Oliver

Reputation: 1245

By default, Outlook 2007 will not load AddIns from HKEY_LOCAL_MACHINE. Fortunately Microsoft has a fix for this here: http://support.microsoft.com/kb/976811

Upvotes: 1

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