HAC2/Installation

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The HAC2 installer can be downloaded here: HAC2_loader_install.exe (updated to the latest installer 2019/03/01)

MD5SUM: 383dedd71e9587819f9e328c0b49bd6d SHA-1: bb4adf2e221f345bb333c11599acec5229e02663

If Windows 10 gives you a problem with the installer, download loader.dll directly here: loader.dll and drop into the controls folder under your Halo installation.

MD5SUM: 831212c19f51bbaa58f1a6806ab75ce1 SHA-1: 3b8bd98db80a5ac264078f2d6e6cf4f80f4e5fc8

This is build #3 of loader.dll - if there is an update available, and you're running a newer version of HAC2, once you run Halo it will ask you to press F1 to install the loader update.

All files downloaded by loader are SHA256 signed using a 4096-bit RSA key. Once you have a legitimate loader installed, it is impossible for a rogue web site to hijack hac.dll, the loader updater, or any other supporting files.

PLEASE NOTE: The original loader previously downloaded hac.dll to the user's TEMP folder. Version 2.0 of the loader now downloads everything into your Documents\My Games\HAC2 folder. For Windows XP and later, press your Windows key, and click Documents. From there, navigate to My Games\HAC2. You will find a HAC2.ini file, and a Downloads folder that contains all files downloaded by loader, including hac.dll

ALSO NOTE: These instructions are as current as possible but may be out of date, and the screens might change. However, the overall install process will not change.

Detailed instructions:

Run the installer. If you use an anti-virus and you have issues, try disabling it.

Windows 10

You will see this first:

HAC2 loader installer1-win10.png

Click "More Info"

HAC2 loader installer2-win10.png

Click "Run anyway", and follow the rest of this guide.


All other Windows versions:

The installer starts up with this:

HAC2 loader installer1.png

Make sure Halo is closed. Click Next.

Select the version of Halo you want to install loader to. It supports both HCE (Halo Custom Edition) and HPC (Halo PC Combat Evolved). For this example, we will choose only Custom Edition.

HAC2 loader installer2.png

The installer asks where you want to install it. If you installed Halo with the CD installer, the path will be correct. If you did NOT install it from CD, browse and find the correct folder where haloce.exe or halo.exe is. If you chose to install it for both HCE and HPC, it will ask twice, one for each version of Halo.

HAC2 loader installer3.png

If loader.dll already exists in the controls folder, the installer will ask if you want to make a backup of the existing dll. If you choose not to, the installation will abort.

HAC2 loader installer4.png

If a backup of loader.dll already exists called loader.dll.backup, the installer will ask if you want to overwrite it. If you choose not to, the backup will not be overwritten and the installation will continue.

HAC2 loader installer5.png

If everything went well, you will see this:

HAC2 loader installer6.png