How do I stop myaccounts@nationalcity.com? -Fix didn't work?

I read the answer provided to another user (Be very careful when doing the following. click RUN, then when the box opens, type: msconfig and click ok. At the top of the box, you will see a START tab, click that and then look for the myaccounts@nationalcity.com or words very similar to that and remove the tick. Then it will tell it to reboot, and hopefully this should stop it loading)

Unfortunately, when I type "msconfig" on the RUN prompt I get the following: "Cannot find the 'msconfig' (or one of its components). Make sure the path and filename are correct and that all required libraries are available." My only option is "OK."

I have two spyware programs (SpyHunter and AdAware) which don't seem to be stopping this. I had a pop-up blocker (Adorons), but it would just cause IE to "hang" when it was attempting to deal with this problem. I have disabled Adorons because 4 minutes to get to my homepage was unacceptable. I have Symantec Antivirus. I am on Windows 2000 and IE 6.0.

Any other ideas, or do I have a bigger problem since I can't access msconfig?