Name: UE4SS-Bootstrap (Auto Updater)
Availability: OnlineOnly
Author: alexz006

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UE4SS-Bootstrap (Auto Updater)

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June 23, 2026, 11:51 AM

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June 23, 2026, 11:51 AM

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Install it once, and you will never have to pick a specific UE4SS version or manually update its files by hand again. This bootstrap launcher always grabs the latest active release of UE4SS for you and keeps it updated automatically.

UE4SS is currently under heavy active development with frequent bugfixes and framework updates — staying on the absolute current version layout really matters for modern mod compatibility, and that is exactly what UE4SS-Bootstrap handles in the background.

Why use it:

It completely eliminates the guesswork by automatically identifying and installing the correct, most up-to-date release.
New features and bugfixes are deployed seamlessly and completely on their own whenever you launch the game.
Your personal configurations, mod settings, and active mod lists (enabled.txt) are completely safe and will never be overwritten during update cycles.
If you happen to be offline, the loader bypasses the check entirely so your game boots instantly using the last cached local files.
The script is fully universal and works out-of-the-box with any Unreal Engine game that is compatible with UE4SS.

Installation instructions (One-time setup):

Extract the downloaded archive into your game's executable directory layout. This is usually:
...\<Your_Game>\Binaries\Win64\ (or WinGDK) right next to your game's main .exe file.
Launch the game — UE4SS will fetch, download, and extract itself directly into the local ue4ss folder framework (matching a standard manual layout setup). Done.

How to Remove: To completely uninstall the updater, simply delete the deployed dwmapi.dll. Alternatively, replace it with a vanilla standalone UE4SS dwmapi.dll if you wish to keep using your current loader build while halting the auto-updater functionality.

Advanced Configuration Options (Optional):

The initialization script does not even require an existing updater.ini file for its first run. If missing, it generates one automatically and defaults to fetching the latest cutting-edge nightly configurations (experimental-latest).

The following structural internal modules are enabled by default: ConsoleEnablerMod, BPModLoaderMod, and BPML_GenericFunctions.
To customize features, open and edit the newly generated ue4ss\updater.ini file. Here you can switch between stable or nightly branches, alter update check frequencies, or toggle integrated system mods. The default values just work.

Useful links: