From the Official Site: http://www.denisbauer.com/NETTools/ASPNETVersionSwitcher.aspx
The ASP.NET Version Switcher is a little utility that can be used to quickly switch the .NET Framework version that the ASPX pages are compiled against. This is helpful for developers who often have to test their web applications for compatibility with different version of the .NET Framework
Internally, it uses the command line tool called ASPNET_REGIIS that is included in the Microsoft.NET Framework.
- toggle if only selected vroot should be version switched or child vroots recursively (-s or -sn command line parameter)
- double click on node opens explorer in respective directory
- quick link to IIS Manager