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The following table lists the software that is installed by the prerequisite installer. While these are the minimum requirements, we strongly recommend using the latest available, stable releases of all software and extensions. The following table shows the minimum and recommended system requirements for running WHMCS 8.0 and later. The source for the installer is under Engine/Source/Programs/PrereqInstaller. Most current web servers with PHP & MySQL installed will be capable of running WHMCS.
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If you use Perforce to get the Unreal Engine source code, you'll also find precompiled binaries in the same Engine/Extras/Redist/en-us folder of the Perforce repository. You can find the installer, with separate executables for 32-bit and 64-bit Windows, in the Engine/Extras/Redist/en-us folder under your Unreal Engine installation location. However, you may need to run the prerequisite installer yourself if you build Unreal Engine from source, or if you need to prepare a computer with all the Unreal Engine prerequisites for a specific purpose-for example, if you are setting up a fresh computer to act as a Swarm Agent.
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When you install Unreal Engine through the Epic Games Launcher, the Launcher automatically installs these prerequisites for you. The Unreal Engine includes a prerequisite installer that installs everything needed to run the editor and engine, including several DirectX components and Visual C++ redistributables. Software Installed by the Prerequisite Installer
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