Net Send Command

Does anyone know how I could issue Net commands to the network? The one solution that i'm using now is sort of cheating. I build a .bat file with the command in it and then execute that file. It works well, but I was hoping to get a more "secure" method.

I only need to issue the following commands, so if I can't issue all of the "Net" commands, maybe I can get to these:
Net Send (alias) message
Net User [/DOMAIN] >outputfile.txt

Any suggestions?

Thanks,
John

John Pirkey
MCSD
www.ShallowWaterSystems.com