Author Bootstrapper Application for a Bundle

The <UX> element is a required element inside <Bundle> that references file(s) that act as the bootstrapper application. The following example references a file called ba.dll:

    <?xml version="1.0">
    <Wix xmlns="http://schemas.microsoft.com/wix/2006/wi">
      <Bundle>
        <UX SourceFile="$(ProgramFiles)\src\UI\ba.dll"/>
      </Bundle>
    </Wix>

Inside <UX> , you may also add additional payload files such as resources files that are required by the dll as follows:

    <?xml version="1.0">
    <Wix xmlns="http://schemas.microsoft.com/wix/2006/wi">
      <Bundle>
        <UX SourceFile="$(ProgramFiles)\src\UI\ba.dll">
        	<Payload SourceFile="$(ProgramFiles)\src\UI\resources\resources.dll"/>
        	<PayloadGroupRef Id="ResourceGroupforJapanese"/>
        </UX>
      </Bundle>
    </Wix>

This example references a payload file that is on the local machine named resources.dll as well as a group of payload files that are defined in a PayloadGroup elsewhere inside a WiX Fragment.