What runs in safemode that doesn't with EVERYTHIG unchecked in Startup

[EvelKnievel]

Without going into the whole, long story of my tracing the problem, I've came down to this. I need to know;

If you boot with EVERYTHING in startup UNchecked (start, run, msconfig, startup).
Then boot in safe mode, what runs with EVERYTHING unchecked that doesn't run in safe mode?
Thanks, Evel.

 

[DucatiST2]

First things that comes to mind is:
Video driver (Only VGA supported)and No Network drivers in Safe Mode

 

[EvelKnievel]

Thanks, I just got it figured out. In Device Manager, CDROM, Propertys, there is a box that if it's checked the drive will access the HD every two seconds.
That is the item I've been looking for for a week now. Thanks for replying to my post. Evel.