Rather than us MSCONFIG may I reccommend:
http://www.techtv.com/screensavers/w...386471,00.html
On some operating systems playing with MSCONFIG will cause an alternate desktop to load, although with a box to check to go to your normal desktop.
Mike Lin's software is a small program that allows you to check what is loaded on bootup both within the startup folder and also the registration keys.
He also has a small program that lives in the Systray and notifies you when a program is trying to hijack your home page.
Nice stuff, all free.