I´m running Freelancer in Singleplayer and the Multiplayer-Client of the ENIGMA V.4 ATG-Mod on my Win7 Pro 64 Bit with NO problems at all. But since my mod includes A LOT of changes compared to vanilla, this doesn´t have to mean anything.

The Server-config is actually different due to avoid compatibility-issues with my custom-coded Server-Manager and Tools.
Here are the Server-Stats:
OS: MS Windows XP Professional 32-bit SP3
CPU: AMD 64 3400+ (Single-core)
RAM: 2.0GB Dual-Channel DDR
Graphics: Nvidia Geforce GS 7600
Note: This Machine (config) runs the Server and Client without ANY Issues… not only the Enigma-Mod but several others too.

The Intel-Onboard-Graphics are well known as a cause for problems so…
Anyways:
I don´t know why some people have such serious problems to get Freelancer running on a WIN 7 machine. The things I would recommend have been said previously in other posts. (admin-mode, AV- and firewall-settings, fix IPV6-issues and other bugs with J-Flip and such…) so I don´t think my post is any help… but to make things clear that FL can be played on Win 7 FLAWLESS.

Edit:
Maybe here is something more “usefull” 😄

There are well known issues with the (x86)-Folder and its compatibility (which I experienced myself as well a while ago). To avoid those Probs I would recommend to just NOT install Freelancer in the “pre-configed” folder but maybe on another partition.

Greetings
J.R.