Addins suddenly stoped working, VS 2008, Wiindows 7 64 bit, ArcMap 10.0

Discussion created by jtslbarnes on Oct 3, 2013
Latest reply on Oct 3, 2013 by sean_jones-esristaff
I have some addins that I have written for ArcGIS Desktop 10.0, Visual Studio 2008 vb.net, Windows 7 64 bit.  They have been completed for months and have worked flawlessly for months.

Recently I have started to get the dreaded, "ArcGIS has encountered a serious application error...." dialog when trying to use an addin and then ArcMap shuts down.  It is happening with about half of my addins.

After ArcMap shuts down I am left with the following dialog:



Has anyone had this problem?  Any thoughts?