traffic.dll error causing FS2K pro to freeze

When I start fs2k pro, the 747 splash screen appears, then a box indicating that there is 3rd party software(traffic.dll) incompatible with fs2k and gives me a choice yes or no whether i wish to load it or not. I have tried both answers with the same result...fs2k just disappears compeletely. I located the file in the fs2k modules file and in c:windowssystem files...deleted them and then extracted them again from the install cd...still the same results. I could find no such topics on the Microsoft site. Any help is appreciatedDirk