I'm moving to XenApp6 from Presentation Server 4.5 and using Windows Receiver 3.0 as the client. I have only applicatoin my old Citrix Farm that wil not work in my new enviroment . This application is slate to go away though in the next year. In the mean time I need to see if there is a why for me to allow users to access this old application from the new XenApp farm. I tried to install the old Citrix client but since I already have Window Receiver installed it wanted to downgread it which I didn't want to do.