Issue:

Recently, I am having issues with deploying asp.net mvc 4 application to Windows Server 2008 R2.After add the necessary role and features and I setup an application in IIS. However , I received the following error message: PageHandlerFactory-Integrated” has a bad module “ManagedPipelineHandler” in its module list

Solution:

It turns out that this is because ASP.Net was not completely installed with IIS even though I checked that box in the “Add Feature” dialog.

To fix this, I simply ran the following command at the command prompt

%windir%\Microsoft.NET\Framework64\v4.0.30319\aspnet_regiis.exe -i

If I had been on a 32 bit system, it would have looked like the following:

%windir%\Microsoft.NET\Framework\v4.0.21006\aspnet_regiis.exe –i

References:

http://stackoverflow.com/questions/6846544/how-to-fix-handler-pagehandlerfactory-integrated-has-a-bad-module-managedpip