I recently installed Microsoft Visual Studio Express Edition. It also installed .NET framework 2.0 in my machine. When I wanted to switch to the different version, I used “ASP .NET” tab in the IIS MMC > Default Website > Properties. After few days suddenly the tab “ASP .NET” disappeared. Now there was no way I can change the version.
When I tried to create new web application project, it halted with some error.(Can’t remember now!!!) Then I found ASP .NET application switcher developed by Denis Bauer. It is a nice tool to change the version. Now it became one of my “Must Have” repository tools.