How to run another .exe in an existing proton wine prefix

Steam_Proton_Exe.md

Running games through Steam's Proton is great. But what if there is a secondary exe or configuration application bundled with the game? How can you launch it if Steam itself only launches the game?

Simply run this command in a terminal:

cd /path/to/steam/steamapps/compatdata/20920/pfx

STEAM_COMPAT_DATA_PATH="/path/to/steam/steamapps/compatdata/20920" WINEPREFIX=$PWD \
    "$HOME/.steam/root/steamapps/common/Proton 5.0/proton" run ./drive_c/path/to/custom_application.exe

Where 20920 is the game id.

First you cd (change directory) to the proton prefix in question. If you don't have any custom steam libraries it likely will all be within your home directory. To find it easier you may run find . | grep compatdata from ~/ and when you find it, cd to it.

Real world example:

cd /media/michael/SSDGAMES/steam/steamapps/compatdata/20920/pfx

STEAM_COMPAT_DATA_PATH="/media/michael/SSDGAMES/steam/steamapps/compatdata/20920" WINEPREFIX=$PWD \
    "/home/michael/.steam/root/steamapps/common/Proton 5.0/proton" run \
    ./drive_c/flawless/FlawlessWidescreen.exe

Wstart

Someone in the comments below created a bash script that makes this easier: https://gist.github.com/michaelbutler/f364276f4030c5f449252f2c4d960bd2?permalink_comment_id=3921629#gistcomment-3921629

@cprn
It is enabled. This happens after I start the game and then run protontricks-launch ~/Downloads/my.exe in the terminal.

@Proton6959 If the exec file is supposed to be run in the same process layer as the game then try one of the other methods - if it doesn't work, then IDK man, sorry. Either this:

protontricks-launch --appid <steam_appid> ~/Downloads/my.exe

or this:

protontricks <steam_appid> shell   # use Steam appid of the game
path/to/your/proton ~/Downloads/my.exe

Maybe there's something in protontricks-launch --help that'll help you.

hey fellows, try steamtinkerlaunch, its more simple to use another .exe inside steam.....

hey fellows, try steamtinkerlaunch, its more simple to use another .exe inside steam.....

explain how?

hey fellows, try steamtinkerlaunch, its more simple to use another .exe inside steam.....

explain how?

here, its in braziliam porttuguese but just follow the steps, I use here for pes21, eutro truck and american truck to run pickup inside the prefix

Thanks man :)

to run pickup

what is that?