Running multiple versions of the .NET framework in IIS When you install a new .NET framework in your IIS server some applications can stop working showing you the following error:
Server Application Unavailable In the event viewer you will find this:
the same IIS process. Please use the IIS Administration Tool to reconfigure your server to run the application in a separate process. This happens because different .NET frameworks can run in the same server, but cannot share the same application pool, so, to solve this:
