The loadls utility installs or uninstalls the Sentinel RMS license server into the System Services registry. This utility can be run on Windows 2000/XP/2003/Vista only. loadls should be run by a user on a license server computer. User must have administrative privileges to load or remove a System Service.
We would also suggest you to read though Windows 2000/XP/Server 2003/Vista/Server 2008 Service.