Well it seems you can use
NET STOP and NET START commands from the DOS command-prompt to
stop/start a default SQL Server instance:
NET STOP MSSQLSERVER
NET START MSSQLSERVER
For a named instance of SQL you can use:
NET STOP MSSQL$MyInstance
NET START MSSQL$MyInstance
I have to backup someones SQL when they do not have a full blown sql install anywhere so figure this is the easiest way. For the software I also need to backup another directory.