dales wrote: » XenDesktop is traditionally used for VDI, and XenApp is traditionally for SBC and App presentation. However version 7 of XenDesktop has changed the game. Both older versions have several different licence entitlements, the interesting thing is that both XenDesktop Enterprise and Platinum also allow you to use XenApp at the same license level. XenDesktop info can be found here XenDesktop Features and Editions - Citrix eDocs . The basic differences though between the product versions are the inclusions of citrix profile management (which is like roaming profiles except they use stub files), provisioning services, which allows you to create 1 vdisk and then boot multiple vm's or physical devices from the 1 vdisk using pxe or boot iso's. And then there is Edgesight which is a for monitoring performance of a XenApp/ XenDesktop infrastructure its very granular and you can really find out alot of information from it. XenDesktop 7 though changes that effectively making XenApp (or at least the traditional infrastructure part of it) obsolete. It uses the XenDesktops infrastructure to provide access to both Apps and Desktops for both client and server based workloads.