Erik, try CQE available from http://www.wizbang.org.uk If you're server has more than one CPU then the affinity setting's for NTVDM also come into play here. NTVDM usually work's better on a single CPU esp. on Win2K. Mark Erik van der Velde <evdvelde@xxxxxxxxxxxx> wrote: I have a 16 bits application running on a citrix server. (W2K SP3, Metaframe XP, FR2) When a user start this application the cpu usage shows that the file NTVDM.EXE wil use 50% of the cpu. With two users this is 100%, and the server is very slow. In the feature more users will use this program. Someone knows how I can resolve this problem? Regards, Erik van der Velde *********************************************** Visit Jim Kenzig of thethin.net at the Emergent Online Booth #26 at Citrix Iforum 2002! Register now at: http://www.citrixiforum.com/registerNow.html *********************************************** For Archives, to Unsubscribe, Subscribe or set Digest or Vacation mode use the below link. http://thethin.net/citrixlist.cfm --------------------------------- Get a bigger mailbox -- choose a size that fits your needs. *********************************************** For Archives, to Unsubscribe, Subscribe or set Digest or Vacation mode use the below link. http://thethin.net/citrixlist.cfm