7.6 http://microsoft.com/wsdl/types/ Schema

 <?xml version="1.0"?>
 <xs:schema elementFormDefault="qualified" targetNamespace="http://microsoft.com/wsdl/types/" xmlns:xs="http://www.w3.org/2001/XMLSchema">
   <xs:simpleType name="guid">
     <xs:restriction base="xs:string">
       <xs:pattern value="[0-9a-fA-F]{8}-[0-9a-fA-F]{4}-[0-9a-fA-F]{4}-[0-9a-fA-F]{4}-[0-9a-fA-F]{12}"/>
     </xs:restriction>
   </xs:simpleType>
   <xs:simpleType name="char">
     <xs:restriction base="xs:unsignedShort"/>
   </xs:simpleType>
 </xs:schema>