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What OS are your Citrix Servers?
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Was wondering with the following scenario:<br />
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If i had 800 users who would require access to the Citrix server from time to time and i only had a license for Citrix Presentation Enterprise for 55 concurrent , do I need to buy 800 TS CAL from Microsoft. 
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Was wondering with the following scenario:

If i had 800 users who would require access to the Citrix server from time to time and i only had a license for Citrix Presentation Enterprise for 55 concurrent , do I need to buy 800 TS CAL from Microsoft. 

CITRIX and TS CAL license question

Citrix is the synonym for the virtualization and application infrastructure systems developed by the company of the same name. Main areas are application virtualization, Software-As-A-Service (SaaS), cloud-computing and networking. The two most well-known are Citrix XenApp or Citrix CloudPlatform.