I was recently configuring Reporting Services for SQL 2005 on Windows Server 2008 64bit to get a System Center Essentials 2007 going. Each time we ran the installer we kept getting a message that Report Server wasn’t configured but the Reporting Services Configuration Manager wasn’t reporting any issues.
When connecting to the report server directly from Internet Explorer (http://localhost/Reports) we got the following error :-
“Attempted to load a 64-bit assembly on a 32-bit platform. Use ReflectionOnlyLoad() instead if trying to load for reflect”
Not sure the exact cause of this but if you run the following command in the “\Inetpub\AdminScripts” it fixes everything.
cscript.exe adsutil.vbs set W3SVC/AppPools/Enable32BitAppOnWin64 false