http://developers.de/blogs/nadine_storandt/archive/2009/01/20/multiple-vsmdi-files-while-running-tests-or-manipulating-testlist.aspxHey Guys, We have one Testsolution which drives us crazy. Because everytime a user is running a test or manipulating the Testlist (add, delete or edit) a new vsmdi File has been created and added to the solution. For this bug there are several workaroundsenCommunityServer 2008 SP1 (Build: 30619.63)