irc nick as login/pc name

i have an irc bot that is currectly connecting to irc on the clients computer using a random word or just jumbled letters as their username/chat nick... but when they enter the room i want their username to be the name of their computer or login name how would this be possible i'm a total noob with programming in C

Try this.

For the login name its System.Environment.UserName and for the computer name its System.Environment.MachineName.