RDPAddins returns the error "System.Reflection.ReflectionTypeLoadException:Unable to load one or more of the requested types".

Summary:

RDPAddins returns the error "System.Reflection.ReflectionTypeLoadException: Unable to load one or more of the requested
types. Retrieve the LoaderExceptions property for more information" when attempting to connect to Counterpoint in WAN
environment.

Cause:

Corrupt RDPAddins (Remote Desktop Plug-in)

Solution:

 Remove the RDPAddins registry key (make a backup first) and also the RDPAddins folder on the local workstation,  reboot, then re-install the version appropriate NCRWANClient which will re-install the RDPAddin:

Key = \HKEY_CURRENT_USER\Software\Microsoft\Terminal Server Client\Default\AddIns\RDPAddins

Folder name = C:\Program Files\NCR\RDPAddins\

Remove the RDPAddins registry key (make a backup first) and also the RDPAddins folder on the local workstation, then re-install the NCRWANClient (which will re-install the RDPAddin):

Key = \HKEY_CURRENT_USER\Software\Microsoft\Terminal Server Client\Default\AddIns\RDPAddins

Folder name = C:\Program Files\NCR\RDPAddins\RDPAddins.Core.dll