first of all these two process are :
To stop sqlserver.exe process Right click on the taskbar of you computer
Press on MSSQLServer – Stop
Then short message will appear to confirm your choice press on “ Yes”
Then the sqlserver.exe will be closed.
Note that when you want to start U2000 server again you need to right click again on SQL Server Service Manager again and press MSSQLServer – Start
Now to close msserver.exe you need to go to this directory “C:\HWENGR\engineering”
Then open “stopserver”
Then this process will stop.
NOTE: No nee to open this process before start U2000 next time.