The root element of a Burn Package is <Bundle>. The <Bundle> element is a child directly under the <Wix>; element. Here's an example of a blank bundle:
<?xml version="1.0">
<Wix xmlns="http://schemas.microsoft.com/wix/2006/wi">
<Bundle>
<!-- Contents of the package goes here -->
</Bundle>
</Wix>
Inside the <Bundle> element, you can add the following elements:
As a start, let's add in only the required element inside <Bundle> :
<?xml version="1.0">
<Wix xmlns="http://schemas.microsoft.com/wix/2006/wi">
<Bundle>
<UX></UX>
</Bundle>
</Wix>
That's it. Now you have the skeleton authoring of a Bundle. Now we can move on to adding information for the <UX> element. See Author UX for a Bundle.