Hello I have a client who is looking at rolling out XP via XD5. My query is, do they need a VDA license for XP Pro? It would be delivered to both desktops PCs and thin clients. The client has Windows 7 via Select Agreement. No SA. They don't want to roll out Win 7 yet due to app compatibility so that's not an option. Anyone done this already? Pointers to MS documents would be great. Thanks Russell Russell Robertson | Virtual Stream