WiX Toolset

What WiX Toolset is

WiX Toolset is a free, open-source toolset for developers who build installers for Windows Installer. Its build tools produce .exe setup bundles, .msi installation packages, .msm merge modules, and .msp patches. WiX project files use XML text that can be edited in text editors and tracked in source control. Command-line tools work with automated build systems, and MSBuild is supported through the command line, Visual Studio, and common CI/CD systems such as GitHub Actions. Extensions can install IIS websites, create SQL Server databases, and register Windows Firewall exceptions. Burn can install prerequisites with a product, download packages, or combine them into one downloadable .exe. Packages generally work on Windows 7 and later. Building with WiX as a .NET tool or through dotnet build requires a .NET SDK; using it as an MSBuild SDK through msbuild requires .NET Framework 4.7.2 or later. Consumer security updates cover the current and previous major versions, with previous-version support ending up to 10 months after the current version's release. Organizations generating more than $10,000 in annual revenue, as defined by the OSMF terms, must sponsor the WiX Toolset GitHub organization under the Open Source Maintenance Fee.