Top Page > Software Guide > Appendix > When Using Windows Terminal Service/Citrix Presentation Server/Citrix XenApp > Operating Environment
The following operating systems and Citrix Presentation Server/Citrix XenApp versions are supported.
Citrix Presentation Server 4.5/ Citrix XenApp 5.0
Windows Server 2003/2003 R2
Windows Server 2008/2008 R2