We’ve been upgrading our BTS 2006 R2 projects to Visual Studio 2008 while using Visual SourceSafe 2005. We all started to get this annoying error pop-up when checking files in and out.
Unexpected error encountered. It is recommended that you restart the application as soon as possible.
Error: Not implemented
File: vsee\pkgs\vssprovider\csolutionnodebase.cpp
Line number: 2111
There is a workaround available thanks to Stephen Burdeau
In the VSS "Check Out for Edit" or "Check In" dialog, change from the default "Tree View" to "Flat View". To do this, click the corresponding toolbar button on the dialog.