1.xen server 5.6.0
 

Product Installer

The major components of Citrix XenServer are packaged as ISO images, which must be burned onto CDs before use.

The product installer includes XenServer, the XenCenter administration console installer, and product documentation. 431 MB (MD5)

http://downloadns.citrix.com.edgesuite.net/akdlm/5158/XenServer-5.6.0-install-cd.iso

2.Linux Guest Support includes templates and other tools required for support of Linux guests.
121 MB (MD5)

http://downloadns.citrix.com.edgesuite.net/akdlm/5159/XenServer-5.6.0-linux-cd.iso

3.XenCenter

The Windows administration interface for XenServer hosts. These files are included on the Base ISO download but are also provided separately for your convenience. You will need .NET 2.0 SP1 or later installed, via Windows Update. 41 MB (MD5)

http://downloadns.citrix.com.edgesuite.net/akdlm/5160/XenServer-5.6.0-XenCenter.msi