How do I license Windows Server for Desktop Publishing?
Posted by - NA - on 20 September 2007 07:14 AM

In addition to Windows Server Client Access Licenses (CALs), Desktop Publishing also requires separate Remote Desktop Services (RDS) CALs. RDS provides the ability to deploy a virtual desktop infrastructure (VDI) in Windows Server 2008, Windows Server 2008 R2 and Windows Server 2012. Each device connecting to a Remote Desktop Services VDI deployment needs either an RDS CAL, a Microsoft VDI Standard Suite license, or a Microsoft VDI Premium Suite license. 

Types of Windows Server RDS CALs vary:

RDS External Connector - Permits multiple external users to access a single Remote Desktop server. If you have multiple servers, you need multiple external connectors in addition to any required Windows Server External Connectors.
RDS Device CAL - Permits one device (used by any user) to use Remote Desktop Services functionality on any of your servers.
RDS User CAL - Permits one user (using any device) to use Remote Desktop Services functionality on any of your servers.

Apart from the Windows Server RDS CALs, below are four scenarios explaining Windows Server CALs required: 

Scenario 1
1 Server with up to 20 concurrent connections, 50 workstations, 40 users

Per Server=20 CALs
Per Device=50 CALs
Per User= 40 CALs

Scenario 2
10 Servers with up to 20 concurrent connections, 150 workstations, 300 users

Per Server=200 CALs
Per Device=150 CALs
Per User=300 CALs 

Scenario 3
30 Servers with up to 100 concurrent connections, 120 workstations, 100 users

Per Server=3000 CALs
Per Device=120 CALs
Per User=100 CALs

Scenario 4
5 Servers with up to 20 concurrent connections, 60 devices, 50 users

Per Server=100 CALs
Per Device=60 CALs
Per User=50 CALs

In most environments with multiple servers, the recommended licensing method is per user. In Scenario 2 which is representative of shift work where users work a shift and each shift shares computers with the others, then per device would be better suited. You may choose to combine RDS Device CALs and RDS User CALs simultaneously with the server software. You may permanently reassign your device CAL from one device to another or your user CAL from one user to another. You may temporarily reassign your device CAL to a loaner device while the first device is out of service, or reassign your user CAL to a temporary worker while the worker is absent.

Further information on Windows Server CALs can be found on:

Further information on Windows Server Licensing can be found on:

Windows 2012 

Windows 2008 

Windows 2003 




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