Traffic.dll??

here is the problem. my hard drive had failed some time ago and i reinstalled FS 2002. when i goto start up it has this error that traffic.dll is a third party program. i click yes to run it and it exits out of FS. i click no and it just sits there in the first start up scren with the 747. i have 2 traffic.dll files though. one for FS and on for my system32. so can somebody give mne any advice on how to fixx this problem and get back in the air. THANKS