If you aren't familiar with the WiXConverter utility the following is a brief description of what it is and how to use it.
Wix Converter utility is used to convert WiX projects into Windows Installer Editor projects.
WiX (Windows Installer XML) is a toolset that builds Windows installation packages from XML source code.
The WixConverter utility is provided as a Visual Studio solution, which is installed in the Samples\C# subdirectory of the Wise Package Studio application directory.
To use it, open the solution in Visual Studio .NET, build the solution, and run it. The conversion utility accepts command line parameters and then initiates the WixTOWiseProcessor to perform the conversion. This utility also serves as an example of how to use the Wise Automation object model.