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How to Use Earlier Versions of Terminal Services Client in Windows XP and Windows Server 2003

Support for Windows Server 2003 ended on July 14, 2015

Microsoft ended support for Windows Server 2003 on July 14, 2015. This change has affected your software updates and security options. Learn what this means for you and how to stay protected.

This article was previously published under Q320493
This article has been archived. It is offered "as is" and will no longer be updated.
In Windows XP and the Windows Server family, Remote Desktop Connection is already included in the operating system. You can install and run earlier versions of Microsoft Windows Terminal Server 4.0 client and Microsoft Windows Terminal Services 5.0 client on Windows XP and Windows Server 2003; however this action is not supported by Microsoft.
In special situations, developers and testers who develop programs that use the Terminal Server virtual channels may want to run earlier versions of Terminal Services client alongside computers that are running Windows XP or Windows Server 2003 for convenience when they test software.

In Windows XP Service Pack 1 (SP1) and Windows Server 2003, the MSLicensing value in the following registry key is restricted so that only administrators have Full Control permissions to this registry key:
If you are using earlier versions of Terminal Server client or Terminal Services client (versions 4.0 or 5.0), you must have the appropriate permissions to write to and modify this value. To work around this behavior, you must either be a member of the local Administrators group on the client computer or an administrator must give you Full Control permissions for the MSLicensing value.

Article ID: 320493 - Last Review: 02/27/2014 21:12:31 - Revision: 7.5

Microsoft Windows Server 2003, Datacenter Edition (32-bit x86), Microsoft Windows Server 2003, Enterprise Edition (32-bit x86), Microsoft Windows Server 2003, Standard Edition (32-bit x86), Microsoft Windows Server 2003, Web Edition, Microsoft Windows XP Professional SP1, Microsoft Windows Small Business Server 2003 Premium Edition, Microsoft Windows Small Business Server 2003 Standard Edition

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