yes, always upgrade the license server first. You can now download the license server from their website. The version is even newer now than what is on the 5.0 CD. I recommend making a new license server and make sure your old servers can connect to it then transition. if you can't do that, make sure you have a good plan in case things go south. Greg On Thu, May 21, 2009 at 12:38 PM, Cathy Campbell <Cathy.Campbell@xxxxxxx>wrote: > My farm is MPS 4.0….is License server a different version? If so, how do > I find out what version I have? When upgrading from MPS 4.0 to XENApp 5.0, > do I upgrade the License server first? Thanks for your assistance. > > > > > > >