Symptoms
The following message appears when tyring to load the RM WebGUI:
Calling LoadLibraryEx on ISAPI filter "C:\Windows\Microsoft.NET\Framework\v4.0.30319\\aspnet_filter.dll" failed
Cause
Incorrect syntax from .NET installation.
Resolution
1. Click on your computer icon in IIS
2. On right side, you see ISAPI filters - Click
3. Pick up the Filter name ASP.Net_4.0_64bit and its path MIGHT HAVE AN EXTRA \ IN THE PATH,
%windir%\Microsoft.NET\Framework64\\v4.0.30319\aspnet_filter.dll
4. restart IIS - should resolve the error.