just need to mention this: http://www.wsgf.org/dr/gabriel-knight-3-blood-sacred-blood-damned

1- Open regedit and navigate to HKEY_CURRENT_USER\Software\Sierra On-Line\Gabriel Knight 3\Engine .

2- Edit the decimal value of these keys :
(default) = yyyy
Screen Height = yyyy
Screen Widht = xxxx

Where xxxx is desired width & yyyy is desired height.

(default) and "Screen Height" MUST have the same value.

not sure how well known this solution is...

The link to zippyshare is broken.

I agree...on Win10x64, version 1803, build 17110.1000 (latest Insider's)...DGVoodoo2.54 is really quite unacceptable--main character walks through walls, etc.--really unplayable, imo.

What I'm recommending now is 1024x768 with all the driver-applied FSAA & anisotropic you can lay on. Nothing else is really stable, I've found.

The registry fix works--sort of. It won't support resolutions > 1920x1200 (reverts to 640x480 telling me that my frame buffer isn't large enough for 2560x1440 even though I have 8GBs of VRAM), and although it appears to work after a fashion it isn't stable, and the player can expect numerous crashes. Great and valiant try, though...;) Some of these old games are just bugged as they lay...! Judging from my earlier post in this thread years ago I must have at one time achieved at least partial success--maybe. Just can't recall. So I'm sticking with 1024x768 for the time being for this game.

This does work to a degree...but for me it won't work for anything higher than 1920x1200--and even at that resolution it crashes frequently. Best advice: run at 1024x768 and pour on 8x FSAA and 16xAF--it's the only way to play a reasonably stable game of GK3.

Well, too bad, because framerate is pretty bad without dgvoodoo..(but it has severe graphical glitches)

So in the end i just playing with dgvoodoo 2.55 but without forcing higher resolutions (original 1024x768, 8xMSAA, vsync on, fast memory access on through dgvoodooCpl.exe), performance is much better then without it.

The way to work around the Sidney screen problem in widescreen I used is just creating two gk3 shortcuts, one having -width / -height 16:9 values (like 1280/720) added in the shortcut path and one having 4:3 values (1024/768).

Every time you need to use Sidney, just save, stop the game, restart with the 4:3 shortcut, then save again when you're done and start again the usual widescreen shortcut.

The problem is that you have to do this EVERY TIME you use Sidney and use save games afterwards. If you save using the messy Sidney screen in 16:9 mode the 4:3 mode might stop working later, leading to the Emails not showing up when needed and thus breaking the game.

It's not as much of a hassle as it sounds and you will be able to play all the non-Sidney game parts through in beautiful widescreen.