DXGL

I've seen a performance hit of 20 fps in 70% or odd crashes in the 7.5 release it is really not advised.

20 fps hit, does not mean much, if games are runing at lests say 100 FPS, but if they are with 7.3 running 40 FPS and 20 FPS is barely usable.
But it still depends on Which HW and setup ...

Hello. If you manage to get OpenGL 2.0 working on your system, try the following release:
https://dxgl.org/download/DXGL-0.5.24-win32-msvc7_1.exe

Great news thanks, how complicated is test all common DirectX Ok to OpeGL calls properly?

I mean, do you have some recommended applications / games ...

I tried (some could still be missing, but 80% card is there and like 95% of cards from market point of view, only rare cards could be missing) to made list of all desktop cards, i nad not enough energy and knowledge to add mobile (laptop) cards, maybe someone else could do it..
Its on NT4 ...

3Dfx
- cards are Opengl 1 or 1.1 so no go for sure.

ATI:
Fire GL 1/2/3 - are Openg Gl 1.2 - no go
Radeon 7000 to 9000/9200 - OpenGL 1.4 - no go
Radeon 9600 - 9800, they are Open GL 2.0 ,but i my memory serves, i never made Direct3D or OpenGL working on them with NT4, there has to be some trick to ...

That is not nice from Nvidia, or so it emas only Geforce 6xxx and Quadro cards below.

Regarding of this https://www.techpowerup.com/gpu-specs/?architecture=Curie&sort=generation these are Geforce 6 based, if Quadro driver will not work you can find Quadro with same specs and force Geforce driver ...

Ok i still have time to setup NT OpenGL 2.0 machine, so far i have only OpenGL 1.x one.
One machine has only PCI and PCI/X slots, im currently using Geforce 2 MX there what is only OpenGL 1.2, i have Geforce FX 5500 pci, regarding of techpowerup it has OpenGL 1.5 and particial OpenGL 2.0 support ...

Hi, sorry i was busy, its someone some version to download and test?

What problem you have exactly? Are older drivers working fine?
You can always ask here: https://www.vogons.org/viewtopic.php?t=103915
Virtualization is not great for NT4, i mean not real 3D drivers written and there are some successful reports for old mesa - there are links for details in thread ...

Great thanks a lot, could you confirm that OpenGL 2.0, is working with Geforce 6200 and NT4? Because one thing could be drivers claims and second reality, i had not time to test it yet.

BTW i found the great tool to diagnose OpenGL on NT4 and other more modern operation systems Glview - https ...

Every improvement count, if you will make it working with OpenGL 2.0, maybe other developer could help with OpenGL 2 to 1.x downgrading.