C# – Outlook COM addin installed but not loading in Outlook

add-incoutlookvisual studio 2010vsto

I have created an Outlook addin using Visual Studio 2010 that installs fine and creates the appropriate registry keys and folders in Program Files (x86) as I have specified and it shows in Add and Remove programs.

However, when I launch Outlook 2010 – it doesn't show up and when I check the COM Addins, it is not available in the list. I created the Setup in VS and added the Output of the main project in the file system as usual and also included the .vsto file.

Any pointers anyone please?

Best Answer

Since you are running x64 OS and x64 Office, you don't use Wow6432Node - it's only there for Registry Reflection for 32-bit apps on x64 OS. The proper registry hive for you to use is below....

All User Hive (x64 Office on x64 OS)

HKEY_LOCAL_MACHINE\Software\Microsoft\Office\Outlook\Addins\[add-in ID]

See related SO post regarding proper VSTO registry paths.

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