We have a webapplication, made in ASP.NET 2.
This app runs without problems in IIS 6. When we upload it to an IIS 7 (Windows Server 2008 R2 Datacenter) it runs in IIS, but when we open the site in a browser we get this error:
Server Error
500 - Internal server error.
There is a problem with the resource you are looking for, and it cannot be displayed.
The problem was that I nedded to add a feature to the server. After I added
.NET Framework 3.5.1 Featuresit worked.