WF4 work running from Windows server just as well as WF3. The most common problem I've seen is that the cad users tries to run WF from a drive mapping that is different than the drive WF was original installed on. For example, the install was run from the server and installed on drive C. While the network users has mapped the install point as drive W. To resolve this, map the same drive letter for all ProE users, such as W. Then run ptcsetup.bat W, run through the setup and then when it is done it will correct all the paths in the batch files. Now ProE should run as normal. HTH
Bryan