3.5.4.8.2.1 Uninstall

 <xsd:element name="Uninstall">
      <xsd:complexType>
        <xsd:sequence>
          <xsd:element minOccurs="1" maxOccurs="1" name="udps" type="xsd:unsignedInt"/>
        </xsd:sequence>
      </xsd:complexType>
 </xsd:element>

udps:  The uninstall disk protection stage is an unsigned integer with the following possible values:  1 = Uninstall, 2 = Post Uninstall, or 3 = Delayed Uninstall Allowed.