This article describes how to resolve the following error message that can occur on new installations of SpiraTest, SpiraPlan, SpiraTeam or KronoDesk when ASP.NET is not correctly configured. This message typically only occurs on Windows Vista, Windows7 or Windows 2008 Server.
HTTP Error 500.21 - Internal Server ErrorHandler "PageHandlerFactory-Integrated" has a bad module "ManagedPipelineHandler" in its module list.