Hi Paul We have a couple of clients running PS 4.0 on VMware without any problems. I would imagine XenServer would be at least as good. Bear in mind that you'll never get as many sessions on a virtual machine though? Why does your customer want to virtualise? Cheers Russell Russell Robertson |Virtual Stream | Microsoft, Citrix and VMware advisers | From: thin-bounce@xxxxxxxxxxxxx [mailto:thin-bounce@xxxxxxxxxxxxx] On Behalf Of Burke, Paul Sent: 20 August 2009 13:10 To: thin@xxxxxxxxxxxxx Subject: [THIN] Virtualising W2K3 PS 4.0 Servers Greetings, I've got a customer with a pretty simple, 9-server Windows 2003 Citrix PS 4.0 Advanced Edition farm (with latest patches). They now wish to add a couple of new servers into the farm and have asked if it would be possible to virtualise them on XenServer. They do not have Subscription Advantage, so upgrading to the latest supported XenApp version is not currently an option. I know from their DR testing that PS 4.0 will *run* in a virtual environment, but what I need to find out is does it *work* in a virtual environment? Are there any gotchas, workarounds, patches, etc. that I need to be aware of? Any advice would be greatly appreciated. Regards, Paul