Hibiki Bootstrap DLL

DLL proxy loader for Hi-Fi RUSH that bypasses packed executable protections to enable modding.

Disclaimer

This project is provided for educational, research, and authorized modding purposes only. You are responsible for ensuring that your use of this software complies with all applicable laws, licenses, and terms of service of any third-party software involved.

The authors do not endorse or support unauthorized modification, redistribution, or circumvention of software protections.

Installation

Use a bootstrap build configured for the DLL you want to load.

For example, a bootstrap built for foo.dll will only try to load foo.dll.

Steam/Epic Games

1. Copy XAPOFX1_5.dll to <game>/Hibiki/Binaries/Win64/.
2. Place target DLL, such as overdub.dll or UE4SS.dll in the same directory.
3. Remove any other proxy DLLs (e.g. dwmapi.dll, dinput8.dll).

Example:

<game>/Hibiki/Binaries/Win64/
|-- XAPOFX1_5.dll
`-- overdub.dll

Xbox

1. Copy dsound.dll to <game>/Hibiki/Binaries/WinGDK/.
2. Place target DLL in the same directory. Example:

<game>/Hibiki/Binaries/WinGDK/
|-- dsound.dll
`-- overdub.dll

Building

Requirements

• Visual Studio 2019/2022
• MSVC x64 build tools
• Windows SDK

Build Commands

Run the commands from an x64 Native Tools Command Prompt for Visual Studio.

Steam:

build.bat steam <target-dll-name>

Epic Games:

build.bat epic <target-dll-name>

Xbox:

build.bat xbox <target-dll-name>

Replace <target-dll-name> with the exact DLL filename that the bootstrap should load.

The DLL argument is optional. When omitted, it defaults to hibiki.dll:

build.bat steam

Outputs:

• build/steam/XAPOFX1_5.dll
• build/epic/XAPOFX1_5.dll
• build/xbox/dsound.dll