mirh

Not really sure what could be the point of forcing modes if it isn't to improve performance (also was there any specific reason behind ForceSystemMemVertexCache?), but maybe you could have...

***IIRC*** shitty GDI performance was linked to the lack of DXMaximizedWindowedMode... Which on W10 is always on now, causing other problems unless you hack off Direct3D8EnableMaximizedWindowedModeShim... ... Did you try...

You didn't install a game dependency, and it doesn't work. What's strange?

Are you using xliveless?

Then maybe there's some dll loader trickery involved. Try to see if it works with [GFWL](https://community.pcgamingwiki.com/files/file/1012-microsoft-games-for-windows-live/).

Again, you know. Purchasing the game would help. There's plenty of people not having any problem on the same hardware.

Why wouldn't aspect ratio be maintained in fullscreen? Did you check your gpu/monitor scaling settings?

Because this is about compatibility and not enhancements. Graphics cards control panels are already good enough for that.

Maybe that was with some of the [patches](https://www.pcgamingwiki.com/wiki/Tomb_Raider_III:_Adventures_of_Lara_Croft#Essential_improvements)?

Directplay ships by default up to W8 (included too I believe, it should have been 8.1 to make it optional). And the [dxsetup](https://www.microsoft.com/en-US/download/details.aspx?id=35) just install optional side-by-side components, not "the...