Windows Installer
Unrestricted access to Windows Installer functionality!
Open Source
Open source!


Plain XML based source scripts!
Free, no strings attached!
Build Automation
Command-line interface for automated application build process!
Thriving community support!
Why WiX?
Can I update a custom action via a patch?
Yes, you can update a custom action using a patch. If the custom action is included in the Binary table, then simply update the custom action in the update installation image. When you generate the patch between the original and update installation images, the patch will contain a database transform that will transform the old binary data stream to the new binary data stream.