Get the following error message when trying to access TAC Vista Webstation: HTTP Error 500.22 - Internal Server Error An ASP.NET setting has been detected that does not apply in Integrated managed pipeline mode.

Issue

Get the following error message when trying to access TAC Vista Webstation on a Windows 2008 server:
HTTP Error 500.22 - Internal Server Error
An ASP.NET setting has been detected that does not apply in Integrated managed pipeline mode.

Product Line

TAC Vista

Environment

Vista 5.1.5
Windows 2008 server
Webstation 5.1.5

Cause

TAC Vista webstation can not handle "Managed Pipeline Mode" integrated for the application pool in the IIS.

Resolution

  1. Open IIS
  2. Click on Application Pool
  3. For the Application pool used by Vista webstation set it to "Classic" instead of "Managed Pipeline Mode"