"The 7th Guest" Official DirectX port
There are some glitches in "The 7th Guest" Official DirectX port when played via dgVoodoo WIP 37.
The game starts in windowed mode. dgVoodoo logo is missing in the windowed mode. Resolution upscaling settings do not seem to have any effect in windowed mode. Probably dgVoodoo is not getting hooked-up in windowed mode.
You need to press Alt+Enter to enter fullscreen mode. The game plays fine using the default settings of dgVoodoo in fullscreen mode and the logo is also displayed correctly. V-sync also works, which is absolutely essential for this game.
When I choose "Max Resolution" upscaling setting of dgVoodoo in fullscreen mode, textures disappear. Some textures re-appear temporarily when I move the mouse (see screenshot below). Just move around the house to trigger this bug, if it does not instantly happen.

Installation instructions for "The 7th Guest" are the following:
1) Insert CD 2 of "The 7th Guest" game and copy the contents of the "T7G\INSTALL" folder to C:\7thGuest
2) Download Official Patch v1.30 from the link below. Use 7-zip to extract the contents of T7G-130.EXE to C:\7thGuest.
http://www.thealmightyguru.com/Reviews/T7G/Do … -Patch-1-30.zip
3) Download the official Directx Port from the link below and extract it into the C:\7thGuest folder.
https://www.tbyte.com/downloads/t7gwinnv.zip
4) Place dgVoodoo2 files into the C:\7thGuest folder.
5) Insert CD 1 into your drive and run "v32tng.exe" located in C:\7thGuest folder.
6) You need to press Alt+Enter to switch between windowed and fullscreen modes.
"The 11th Hour" Official DirectX Port
I did not encounter any glitches while playing "The 11th Hour" Official DirectX Port via dgVoodoo WIP 37. Resolution forcing and vsync works. I wrote the instructions below in case anybody wants to test it.
Installation instructions for "The 11th Hour" are the following:
1) Insert CD 1 of "The 11th Hour" game and copy the contents of the "SYSTEM" folder to C:\11thHour
2) Download the official Directx Port from the link below and extract it into the C:\11thHour folder.
https://www.tbyte.com/downloads/11hwin.zip
3) Place dgVoodoo2 files into the C:\11thHour folder.
4) Keep CD 1 in your drive and run "v32win.exe" located in C:\11thHour folder.
5) Game will start in fullscreen