To connect and authenticate with the Team Foundation Service Preview you need to install the hotfix KB2581206. While setting up a new machine to work with TFS Azure (#TfsService) i encountered a problem after installing service patch KB2581206.
Reason: if you fail to install service pack 1 before installing the hotfix you might see strange behaviour with Visual Studio. Thanks to Trevor from Microsoft for confirmation.
=> How can I tell if i have Visual Studio Service Pack 1 installed?
If you have Visual Studio Service pack 1 installed, your development environment should show you a version of 10.0.40219.1. But if you do not have Visual Studio service pack 1 installed but install the hotfix KB2581206 directly then your development environment version would be 10.0.3.1118.1.
You can see your development environment version by opening visual studio, from the menu bar click ‘Help’ and chose ‘About Visual Studio’
=> Summary
So, in this blog post we saw the cause for visual studio crashing and strange behaviour if the hotfix KB2581206 is not installed before installing visual studio 2010 SP1.