I'll try this tomorrow, but i doubt if this will work, because users don't logon to a xen server. all users logged on to the same domaincontroller, or do i missing something here.

somehow i need xdclient to run when the (virtual)client computername begins with the VA-CTX and the load the kix script.

ps. does a loginscript loads earlier than a gpo logonscript? or doesn't that matter?

maybe a crappy solution, but also could try to load the script on the virtual client inself from example the "startup" folder.