Hello Pete Dowson,
Recently upgraded to a new PC running Windows 7 x64. Loaded FSX and FSUIPC4, entered carefully recorded reg key and...bingo...all OK.
Still running FS9 due to magic FS Nav program so loaded FS 9 and FSUIPC3.75, entered carefully recorded reg key for v3 (having confimed it with simmarket from my account). Window says 'Thank you, now you need to restart FS 9 before reg is shown'. I restart FS 9 but again FSUIPC3 is shown as not registered! Tried a copy and paste but to no avail. I cannot get it to accept the registration even though it states that it has accepted it but really hasn't! Any ideas how to reg my FSUIPC3? I bought this on 25/11/2003, it has given me great service so far and I would like to continue using it on my new PC.
Regards, Ken French.