Index: AXaif/Message/Header.cls.xml
===================================================================
diff -u -r34604 -r34749
--- AXaif/Message/Header.cls.xml	(.../Header.cls.xml)	(revision 34604)
+++ AXaif/Message/Header.cls.xml	(.../Header.cls.xml)	(revision 34749)
@@ -38,13 +38,17 @@
 <Parameter name="XMLNAME" value="Action"/>
 </Property>
 
+<Property name="RequestMessageId">
+<Type>%String</Type>
+<Parameter name="MAXLEN"/>
+<Parameter name="XMLNAME" value="RequestMessageId"/>
+</Property>
+
 <Storage name="Default">
 <Type>%Library.CacheSerialState</Type>
 <State>HeaderState</State>
 <StreamLocation>^AXaif.Message.HeaderS</StreamLocation>
 <Data name="HeaderState">
-<Structure>listnode</Structure>
-<Subscript/>
 <Value name="1">
 <Value>MessageId</Value>
 </Value>
@@ -54,6 +58,9 @@
 <Value name="3">
 <Value>Action</Value>
 </Value>
+<Value name="4">
+<Value>RequestMessageId</Value>
+</Value>
 </Data>
 </Storage>
 </Class>