protonscr

noob question about 32 / 64 bit

dxvkclosed question
doitsujin/dxvk#5779 · opened 2026-07-06 by nr1995 · updated 2026-07-06 · 3 comments · github
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Nnr1995 2026-07-06 github

Hi, noob here.

I've a potentially dumb question about DXVK.

Do I choose the 32-bit d3d9.dll because the game is 32-bit?

Or the 64-bit d3d9.dll because my OS is 64-bit?

How does it work?

Thanks!

BBlisto91 2026-07-06 github

The former yes. Bitness is dependent on the application.

Nnr1995 2026-07-06 github

The former yes. Bitness is dependent on the application.

That's very helpful, thanks for the quick response.
What happens if you replace the original (say, DirectX) .dll with a DXVK .dll of the wrong bitness?

BBlisto91 2026-07-06 github

You shouldn't replace any system dll's on Windows with dxvk if that is what you mean. Will end badly.
But besides that, placing a wrong bitness dll next to a games exe will just have it ignore it.

DLLs