Just want to add, that running Neocron with Windows 7 64 bit also seems possible without problems.
What i did:
* creating (as usual) a separate external folder for all games (like h:\mygames\nc )
* i copied my NC installation directory from my old XP backup to the new position at my W7 system (right: i did not run the installation because of missing installation media - i tried to just copy it)
* i started it in windowed mode as normal user.
... NC is running fine.