Hi,I had to perform a system restore on my pc last night due to a graphics problem.Anyway everything is working fine except FS2004. It loads up without a problem until I select or create a flight. I get on error message about the ATC.dll then shuts down.Is there an easy way for fix this or am I going to have to start all over again with a clean install?.Hope someone can helpThanksAdrian

I'd make sure the FS9.1 patch is still intact. My version of ATC.dll is 9.01.040901.01.If you are an FSUIPC user you should at least be at version 3.98 for FSUIPC.dll.Do you use another ATC application than FS9 ATC? If you have FSUIPC you can shut down FS9 ATC. This will not affect the operation of AI flights. See the FSUIPC documentation.

Thanks very much for that.After several years I eventually decided to start over with a clean install... there were so many files etc that were no longer being used, works like a dream!.Once again thanks for replying