Okay, another question about this game: Does anyone know if retail copies work with Windows 7 64?
Just tried installing and patching it and the game does not appear to run on Windows 7 even with compatibility options. (At least not on a non-US English version of Windows).
Okay, found the problem. Anachronox doesn't like the newer Nvidia cards. If you go into the Nvidia control panel and add the Anachronox.exe to the 3D settings, you can then edit the settings for that and turn on the Extension Limit. This will get the game running after all.
But there may still be a few problems.
If you have an Ati card, I have no idea whether it will work or not.