Tuesday, November 1, 2011

TFS86002: Team Foundation was unable to initialize the Office AddIn.

Issue: While opening the spreadsheet from Visual Studio 2010, you might get the following error.



Could you check the followings?

1. Open the Excel Options (Office button on top left -> Excel  options button)

2. Do you see the Team Foundation Add-in in the list (as shown below) ? Also does it point to the 10.0 folder


3. If its disabled, scroll the list to the “Disabled Application Add-ins” and try to enable it.

4. You can also load the Add-in (if its missing) by clicking on the COM Add-ins option in the drop down shown in the image above. Click the Go button

5. Verify that the Add-in shows up – If not add it.


  And also make sure that the .net  programmability  support  is installed.

How to check .Net programmability support is installed?

Go to “Start” – “Control Panel” – then double click on “Add or Remove Programs”


Select “Microsoft Office Professional Plus 2007” and click on the “Change” button


Select “Add or Remove Features” and click on the “Continue” button


Select the “.NET Programmability Support” drop down arrow, choose “Run from My Computer” clip_image008 and click on the “Continue” button.  This should install the .NET Programmability  Support function.



  1. Good Blog man. I was able to help someone using this instruction. I am definitely adding it to my bookmark.

  2. Thank you very much !
    It's the only think that fixed my issue with PowerPoint 2013 !
    After having uninstall VS2015, PowerPoint was still linked to the Team Foundation add-in located in "C:\Program Files\Common Files\microsoft shared\Team Foundation Server\14.0\x86" and not the add-in that comes with VS2013.