Taking Steam out of Startup

I have Windows XP and when I installed Steam I must have told it to run in Startup. I'd like to take it out of Startup, but I forgot how to take things out of startup. Can anyone tell me?

Thanks!

When the main steam window is open click on steam in the upper left corner and choose settings and then choose interface and you will see the option to run steam when your computer starts.

Thanks, Donald!