Hello,<BR><BR>I have an NT service that I setup so that it cannot be stopped. I did this by setting the service&#039;s DACL to deny "stop service". In windows 2000, you cannot stop my service from the service manager NOR the process from the Task Manager. (that&#039;s right, it prevents you from killing the process) However, in XP, you cant stop it from the Service Manager, but you CAN from the task manager. I can&#039;t figure out why. I have removed all ACE&#039;s from the service&#039;s DACL using the SCACL.exe tool on XP. Still, I can kill the service through Task Manager. Any suggestions? What is different with XP and 2000?<BR><BR>Thanks!<BR><BR><BR>