net localgoup administrators user (your username) /add

when i put this in command prompt i just get the help message showing me all the parameters, am i doing something wrong?

eg: you can type in "shutdown" but as soon as u add a parameter it says "acess is denied." also u can't do stuff like "format" or "chkdisk." harmless stuff like "dir" "tree" and "ping" u can use. but anything that could possibly c...

My school network has command prompt enabled, but most of the usefull commands have been blocked. Any way to get round this?