Neocron is based on the good ol quake engine as far as i know, so pretty much everything that came after tech wise is not supported, which makes it pretty much impossible to make it look better without changing things under the hood
Actually, NC runs on a modified and beefed up Genesis3D engine.
Basic D3D9 support was added with BDoY/NC2 in 2004 and by the looks, the NST is currently changing bits and pieces "under the hood" to improve the visuals (texture resolution, lighting, possibly shaders?).
PHP Code:
"Computer voice: Fatal system error in unit 13, gamma sector, cryo recreation phase has been interrupted.";
//answers
set 4 "Ok, see you later";
set 5 "You're boring me, piss off";