Hey what's up?

I have a question about NT servers... I'm trying to test my friends security on his server, and I know it's running on NT.

So I'm trying the command in DOS that's like:
net view \\(the ip addy)

But I get "Error 3545: You cannot start or stop the network from within an MS-DOS window."

:| Does anyone know what this means? Or am I missing something?