When a WiX project is present in the solution, the Test Run Configuration editor in Visual Studio Team System 2008 (Test->Edit Test Run Configurations) closes immediately if the "Code Coverage" item is selected. This can also take down Visual Studio as a whole.
I have same problems in Visual Studio 2008 SP1
I can't reproduce this problem with VS 2008 SP1. Can anyone provide more details that might help narrow down the issue?
I can't repro this in VS2008 SP1 and WiX v3.0.4721.0. Please re-open the bug if you can repro it with a newer build.
This Tracker item was closed automatically by the system. It was
previously set to a Pending status, and the original submitter
did not respond within 21 days (the time period specified by
the administrator of this Tracker).
This is a VSTS 2008 issue. The same issue arises if a silverlight project (insted of a Wix project is present). See http://support.microsoft.com/?kbid=962866 for details.