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Multi-Run Patch

This patch modifies launcher.dll to allow multiple copies of SFM to be ran at the same time.
It also allows you to have SFM launched while another source game is running.
This script is based off of KiwifruitDev's Viewport Resolution Patch
Thanks to Thespikedballofdoom for inspiring the idea.

The script patches launcher .dll to disable the creation of the singleton mutex, and disables the check for any active singleton mutex. Aka, you can now run multiple copies of SFM.

1) Launch the script via Scripts > an0n > Multirun Launcher Patch
2) Acknowledge the warning message
3) Press OK, the launcher will be patched and SFM will be restarted

This patch will only need to be run once.

-multirun and -allowmultiple arguments do not work with SFM, and patching launcher.dll in-memory doesnt work as it loads in before the python scripts execute. So patching the file and saving it is the only option.

This is for my program, "SFM Multi-Render", where it will automatically run and render your project split between multiple copies of SFM running simultaneously. This results in renders that can be 4-5x faster than normal.
It is in beta, and not thoroughly tested, but I have used it personally for my own renders and have seen good time savings.

SFM Multi-Render

Includes:
sfm\mainmenu\an0n\Multirun Launcher Patch.py