Question

You can launch an application in the background (so InstallBuilder will not wait for it to finish) by adding & as the final argument of the action. If you edit the XML file directly, remember that & needs to be escaped as &. For example:

<finalPageActionList>
  <runProgram>
    <program>${installdir}/bin/myapp</program>
    <programArguments>&amp;</programArguments>
    <progressText>Do you want to launch ${product_fullname} now?</progressText>
  </runProgram>
</finalPageActionList>