Hi Allcould some one please tell me if the download version of radar contact is compatible with windows vista ultimate 64 bit for fsx.Many thanks Qas

sure is.you may have to register a couple of .dll's manually, that go in the syswow64 directory.see this post on how to do ithttp://forums.avsim.net/dcboard.php?az=sho..._id=30042&page=you would substitute your .dll or .ocx that needs registering