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Launches a Steam game, then sets its priority.
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SteamPriorityLauncher v1.3 Aug 16, 2019
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README.md

SteamPriorityLauncher

Launches a Steam game, then sets its priority.

Installation

  1. Download the latest EXE from here.
    Note: If you've already done this once, you don't need to do it again. Just create a new shortcut to the same EXE.
  2. Right-click on the EXE, and then select "Create shortcut".
  3. Right-click on the newly created shortcut, and then select "Properties".
  4. In the "Target" textbox, add the following:
    -gameID <Steam game ID> -gameExe <name of the game's main EXE>
    If you don't know the name of the game's main EXE, run the game normally, open Task Manager, and look for the game in the list. Then, right-click on it and select "Properties". You should see the EXE name in the first textbox.
  5. Optionally, rename the shortcut and give it a proper icon.
  6. Select "OK".
  7. You're done!

Options

To see the launcher's options, simply run it using your preferred command line with no options.

  • -gameID - The Steam ID of the game you want to launch. Required.

  • -gameExe - The name of the game's main EXE. Required.

  • -priority - The game process' new priority.
    Valid values are:

    • L - Low/Idle*
    • B - Below Normal*
    • N - Normal
    • A - Above Normal
    • H - High*
    • R - Realtime* (requires admin privileges, may cause system instability!)

    (* - not recommended)
    If this option is not specified, the priority will be set to A (Above Normal).

  • -affinity - What cores the game process will be allowed to run on.
    This option takes a list of cores, where 0 is core #1. Every number in the list is separated by a semicolon (;).
    If this option is not specified, the process will be allowed to run on all cores.
    Entries that aren't valid decimal numbers are evaluated to 0.
    Invalid entries (I.E selecting core 4 [actually 5] on a quad-core processor) are ignored.
    If the given core list evaluates to nothing, the launcher will error out.
    You won't need to set this option in most cases.

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