I am trying to set up Shibboleth SP on a Server 2008 R2/ IIS 7.5 machine.
IIS throws the following error when browsing to localhost:
HTTP Error 500.0 - Internal Server Error Calling LoadLibraryEx on ISAPI filter "C:\opt\shibboleth-sp\lib64\shibboleth\isapi_shib.dll" failed
I'm assuming that this is because IIS does not have permissions to get to that dll file, but I'm not sure how to fix it. I went to the C:\opt folder and added permissions for the IIS_USRS group for the shibboleth-sp folder, but still it didn't work. Is there another user that I have to give permission to because it's using IIS 6 Compatibility Mode?
Is there anything else that I should be checking besides for based on this error besides for the folder permissions?