Unfortunately, they took out the Software/StartUp configuration option out of Windows Defender in Windows 7.
Like you said, you can configure with msconfig, or you can use a third party program like Autoruns, CCleaner, Glary Utilites to configure start up programs.
I use Tune-Up Utilities... best program I used over the years for maintaining my system. I wonder though if there's a plugin for the control panel like it was back in XP...