Windows Installer
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Why WiX?
What are .wxs & .wixobj files?

What are .wxs & .wixobj files?

A .wxs file is the extension used by all source files in the Windows Installer XML system. The .wxs files are preprocessed then compiled into WiX object files which use the extension .wixobj. When all of the source files have been compiled into object files, the linker is used to collect the object files together and create a Windows Installer database.