Error in Remote Desktop Clients with Terminal Services Licensing Per Device.

Went you renew or replace the Remote Desktop licenses Per Device sometimes receive errors in RDP Clients to delete actual licenses in your clients follow this procedure:

1. Backup the registry entry:
   HKEY_LOCAL_MACHINE\Software\Microsoft\MSLicensing
2. Delete the registry entries:
   HKEY_LOCAL_MACHINE\Software\Microsoft\MSLicensing

In Macintosh:

1. Delete the contents of this folder:
   /users/Shared/Microsoft/RDC Crucial Server Information/

See:
http://support.microsoft.com/kb/187614/en-us
http://technet.microsoft.com/en-us/library/cc756826(WS.10).aspx