how do I correct

I allowed my system 32 to be added to my Startup registry
keys. Registry entries in the Windows registry that store
paths to applications on my computer. Applications listed
in any registry keys are loaded automatically when
Windows starts. These keys generally apply to Windows 95,
98, ME, NT, 2000, XP, and 2003.
I do not want this to happen and don't know how to get it
out of the Application Agent's events file so that it
doesn't start everytime.