Tools/msi/doc/doc_no_files.wxs

<?xml version="1.0" encoding="UTF-8"?>
<Wix xmlns="http://schemas.microsoft.com/wix/2006/wi">
    <Fragment>
        <ComponentGroup Id="doc">
            <!--
            This file is included when the CHM is not available.
            
            This way, snapshot builds can succeed without having to
            build the docs.
            -->
            <Component Id="EmptyDocFolder" Directory="Doc" Guid="{22FD42DB-EC66-4B1C-B1FC-44E0CF7B2462}">
                <CreateFolder />
                <RemoveFolder Id="Remove_EmptyDocFolder" On="uninstall" />
            </Component>
        </ComponentGroup>
    </Fragment>
</Wix>