Citrix products, such as XenDesktop, require you to buy some licenses according to your needs, and Citrix offers licensing programs designed to meet these needs.
For commercial, public, and private organizations, you can buy licenses according to the following programs:
An EASY License
The Enterprise License Agreement
Citrix also provides programs for the education and government sectors.
You can acquire licenses for your Citrix environment by participating in the Citrix Volume Licensing. Using Citrix Volume Licensing, Citrix provides software licenses and Citrix products such as downloads, and permits you to save money rather than acquiring retailed boxed licenses.
The EASY License Program is ideal when you have to license Citrix products for very few users. It does not require a minimum amount or quantity, so you can buy Citrix licenses on an as-needed basis.
The Enterprise Agreement, on the other hand, is appropriate for organizations with more than 250 users...