Why is my services.exe process at 140,000k?

I am still having problems with unwanted javaw.exe processess starting on my server 2003.
I also noticed that when this is going on my services.exe process is large. The clients have trouble logging on when this is going on with screens freezing before the icons appear or programs locking up and everything on the desktop disappearing. Another bit of wierdness is that when I open task manager on the server and close it again their computers unlock. It has happened enough to make me dismiss coincidence. Any help?