Installing the WiX Toolset v3 (3.0 or later) requires downloading the executable from the official site and adding its binary folder to the system PATH to enable command-line tools like candle.exe and light.exe. Once installed, users must manually configure the PATH environment variable to point to the installation's bin directory to ensure global access for building MSI and EXE installers. For a step-by-step guide on downloading and configuring the tools, visit WiX Toolset Releases . How to add WiX toolset bin path to the PATH? - Windows