Source of blog post on http://blog.bartdemeyer.be

gistfile1.xml

<?xml version="1.0" encoding="UTF-8"?>
<Wix xmlns="http://schemas.microsoft.com/wix/2006/wi">
  <Product Id="{D16E42B5-3C6F-4EE5-B2F4-727BF8B74A92}" Name="Demo website setup" Language="1033" Version="1.0.0.0" Manufacturer="Me" UpgradeCode="9279b740-8419-45c4-9538-6a45f8e949c7">
    <Package InstallerVersion="200" Compressed="yes" InstallScope="perMachine" />

    <MajorUpgrade DowngradeErrorMessage="A newer version of [ProductName] is already installed." />
    <Media Id="1" Cabinet="DemoWebsite.cab" EmbedCab="yes" />

    <Feature Id="ProductFeature" Title="DemoWebsite.Setup" Level="1">
      <ComponentGroupRef Id="MyWebWebComponents" />
    </Feature>
  </Product>

  <Fragment>
    <!-- Will default to C:\ if that is the main disk-->
    <Directory Id="TARGETDIR" Name="SourceDir">
      <!-- Will reference to C:\inetpub-->
      <Directory Id="INETPUB" Name="Inetpub">
        <!-- Will reference to c:\Inetpub\Demowebsite-->
        <Directory Id="INSTALLFOLDER" Name="DemoWebsite">
        </Directory>
      </Directory>
    </Directory>
  </Fragment>
</Wix>

can't get it built if I don't include these lines

< Fragment >
< ComponentGroup Id="MyWebWebComponents" Directory="INSTALLFOLDER">
< !-- TODO: Remove the comments around this Component element and the ComponentRef below in order to add resources to this installer. -->



</ ComponentGroup>
</ Fragment>