I am frequently asked questions about Microsoft, what our VDI, DV or RHSD solution looks like and how to license it as I look after the relationship between Citrix and Microsoft in the UK. Having seen the article at Computer Weekly I decided I would share some thoughts on what it is and how to license it (licensing in a blog later in the week). On the licensing front, I should say, while I have a lots of experience, always talk to a Microsoft Licensing Specialist . Always! Microsoft licensing moves forward to enable more customer scenarios all the time, so by the time I hit send, it could be out of date already. Sad but true. To quote from the article above, which is very good (except for the licensing sidebar which is confusing IMHO) “But one research firm that has looked at Microsoft’s new EA, has found that Microsoft has, in fact, simplified client access licensing. “ What is DV, VDI and RHSD First off, I’m assuming everyone is clear on the difference between DV and VDI. Ok, maybe not, so my 30-second guide: DV (for me) is the use of a Windows Server to serve out desktops or applications from a single Windows Server operating system or the use of VDI or the use of a type 1 or type 2 hypervisor on the desktop to give us a 2nd operating system that we can access applications from. It is bigger than VDI and to be honest, most of the time when people talk to me about VDI, they mean RHSD. RHSD (Remote Hosted Shared Desktops or Remote Desktop Services/Terminal Services) is the use of a Windows Server to serve out desktops or applications from a single Windows Server operating system . Each user see’s the same applications and has no-admin rights VDI is the use of Windows (probably Windows 7 today) served out from a virtual machine running Windows 7 guests (obviously on Hyper-V server as the host for the best performance ) RHSD has been around for years – Terminal Services, Remote Desktop Services are the Microsoft name and Citrix has been offering a solution by many names for years...