I have a W2K Pro workstation that is being used as a application server for a small group of users in a large (over 1000 users) NT 4 Domain. I need to make fat least 20 sessions available for sharing to this select group. Shall I upgrade to W2K Server using winnt32.exe from within W2KPro? Or is there another way to make more sessions available? Will my applications still work after upgrade? Thanks.