We publish an application through MS RemoteApp/terminal services windows 2008. For a while we were having some users files stop responding durning login. Soon found out it was because the off-site backup window was running too long and locking the files. Recently it is happen again but only on a certain file and not due to back up window. Basically the app minimizes and stays there unresponsive. If I rename the user file and make a new copy of it the problem goes away so it must be file locks or something. I have run net file but it doesn't report anything. Ideas?