IIS7 isapi filter problem

June 2008 -

Got an error trying to load a simple html page.

Calling LoadLibraryEx on ISAPI filter failed

Removed the following from the ISAPI section from IIS7 Administrator and page loaded.

ASP.NET_2.0.50727.0
C:\Windows\Microsoft.NET\Framework v2.0.50727\aspnet_filter.dll

ASP.Net_2.0.50727.0
%windir%\Microsoft.NET\Framework\v2.0.50727\aspnet_filter.dll

ASP.Net_2.0.50727-64
%windir%\Microsoft.NET\Framework64\v2.0.50727\aspnet_filter.dll

This didn't happen before. Perhaps because I ran IIS Admin 6 Administrator? The above dlls exist. Probably permissioning.