You already heard about the DPFix by the same Duder, who made the Dark Souls Fix - "unlocking" the resolution for the game.
Current version is 0.2 Alpha - crashes for some folks. [Edit] Scratch that. Version 0.3 Beta is live, with some improvements:
- Fixed normal mapping/lighting of many surfaces in the game (this is a big one)
- Fixed minimap location
- Added windowed mode (in addition to fullscreen and borderless windowed fullscreen modes), since it was requested
[Edit: I had some graphical errors with the 0.3 (for the first time) and the latest NVIDIA Drivers 331.65 on Windows 7 32bit. Your mileage may vary.]
Beyond that I managed to dump the DSFix 2.1 and 2.2 - also works. If your PC can handle it, I highly recommend that you use the "downsampling" method to further improve the visual quality. Let the game render internally at a double (or triple) rate, than what you see on your display. I managed to make the game render in 5760x3240 while it displayed 1920x1080px. I also managed to run the game on triple monitors, but the aspect ratio and FOV did not scale. There is an easy fix already in the making for the "widescreen" fans, among us.
I also managed to run the game in STEREOSCOPIC 3D (only color anaglyph version), but the effect on PC is not that great. The game engine cannot handle z-buffer/depth beyond the lowest settings. So the "3D-effect" is only rudimentary.
On top of THAT, you can haz Boris Vorontsov's ENB Series custom baked D3D9.dlls running by simply putting it in the exe directory of the DP game. As always, you can adjust the enbseries.ini file to enhance the available effects (not all of them work). You have to experiment. You can choose between different versions, he made for specific games, which often work with other games, or you can download the vanilla version.
If you are familiar with the ATI and NVIDIA tools, you can also use something like Nvidia Inspector etc, to attempt to "force" settings in the game. Might not work.
It seems, at some point, somebody with a lot of free time will come along and replace the textures with HD textures - think of SKYRIM MODDERS. There is no reason, why this won't happen in the future. Don't look at me! I'm already wasting too much time writing THIS thing, here!
I hear people talking a lot of smack about the PC port of this game. They all must be very young. I am older than Jeff or any of the GB Duders and my experience is different. I see a decent port of a console game, without any PC specific "enhancements" - true - but the controls work fine, the game does not crash (for me), the game has no game-stopping bugs, and I even LIKE THE GRAPHICS (as in rendering, as in DOF effect, lighting, etc).
Not to mention, that PC people get to play one of the most bizarre* and controversial games**, from the last couple years. Enjoy your stay in Greenvale.
DSFix & DPFix: http://blog.metaclassofnil.com
Boris Voronotsov's ENB Series: http://www.enbdev.com/download.htm
*) according to Game "Critics" ... (source: Wikipedia).
**) according to the Guinness Book of Records ... (source: Wikipedia).