No problems here...

4.5.0 and 4.5.1. I only ran into the issues you're having when the files were blocked, but I see you've checked that. I'm running the 3.5 version, not 4.0.

I have same issue, and I can get it running on 64 bit 2008 R2, if the files are located on a local drive, but when located on a fileshare I have the issues with empty backend.

Thanks all, the fileshare remark might be on to something, i'll have our sysadmin check it out!

It works when we have all files on the local filesystem of the server, but not when we place them on a share. It seems that during this step of the installation, the command for .net 4 doesn't work:

%windir%\Microsoft.NET\Framework64\v4.0.30128\caspol -m -ag 1. -url "file://\\xxx\WebSharedCont\Farm01\www.aviapartner.aero\*" FullTrust -name "ARFYES\IUSR_xxx"
yes

%windir%\Microsoft.NET\Framework\v4.0.30128\caspol -m -ag 1. -url "file://\\xxx\WebSharedCont\Farm01\www.aviapartner.aero\*" FullTrust -name "ARFYES\IUSR_xxx"
yes

%windir%\Microsoft.NET\Framework64\v4.0.30128\Aspnet_regiis.exe -ga "ARFYES\IUSR_xxx"
%windir%\Microsoft.NET\Framework\v4.0.30128\Aspnet_regiis.exe -ga "ARFYES\IUSR_xxx"

Does anyone know the valid command for setting these permissions in a .net 4 environment?

is working on a reply...