Remove Autostart Programs

Microsoft Windows XP

I have been using the Autoruns freeware to delete autostart programs from my
computer in order to speed it up (see from tip column by Tony Northrup
"Restore Your Computer's Performance with Windows XP"
http://www.microsoft.com/windowsxp/using/setup/expert/northrup_restoreperf.mspx).
I went too far and when I try to start Windows, it will log on but
immediatly log off and send my back to log in screen.
I tried to log on on safe mode but not help.
Does anyone have a recommandation?

thanks a lot
Try Tony Northrup. It was his advice.