this post was submitted on 08 Aug 2026
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I can't remember the hard way to do it with wine, but if you set it up to play through proton, protontricks is an app that will help you easily install these sorts of dependencies. Just find the game your trying to fix, select default wine prefix, install windows dll, then pick what's missing.
I think it's mostly just winetricks, tbh, but set up to more easily find the relevant directories used by proton. Never used Lutris much, so not sure how finicky it is to use winetricks on.
Second protontricks.
Also, when you open random exes with proton tricks, it will give you a list of existing proton instances. If you have a decent steam library already using proton, it's going to be a list of installed games. If a game on there uses the dll that you need, you can just pick that game and you don't need to setup anything, it already is.
I asked Google for a list of games that use directx9c, and it gave me Fallout: New Vegas, The Elder Scrolls IV: Oblivion, Portal (early builds/legacy render paths), Left 4 Dead 2, and Mirror's Edge. L4d2 is free I think, so you can just install this game then run your game through that proton instance. Zero headache.
This probably has some hidden caveat I'm not aware of, I'm just trying to play games.