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Event ID 91 — Remote Desktop Services Client Access License (RDS CAL) Availability

Published: January 8, 2010

Applies To: Windows Server 2008 R2

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When a client—either a user or a device—connects to a Remote Destkop Session Host server, the RD Session Host server determines if a Remote Desktop Services client access license (RDS CAL) is needed. The RD Session Host server then requests an RDS CAL from a Remote Desktop license server on behalf of the client attempting to connect to the RD Session Host server. If an appropriate RDS CAL is available from a license server, the RDS CAL is issued to the client, and the client will be able to connect to the RD Session Host server.

RDS CALs are installed onto a license server by using the Remote Desktop Licensing Manager tool.

Event Details

Product: Windows Operating System
ID: 91
Source: Microsoft-Windows-TerminalServices-Licensing
Version: 6.1
Symbolic Name: TLS_I_LKP_IMPORTED_NON_WIN7
Message: The migration of Remote Desktop Services client access licenses (RDS CALs) has completed. Because the source Remote Desktop license server %1!s! is running an operating system that does not support the deletion of RDS CALs, ensure that %1!s! is no longer used as a license server with the same RDS CALs that were migrated.

Resolve

This is a normal condition. No further action is required.

Related Management Information

Remote Desktop Services Client Access License (RDS CAL) Availability

Remote Desktop Services

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