diff -r 90517678cc4f -r 453da2cfceef qtmobility/src/messaging/qmessagecontentcontainerid_win.cpp
--- a/qtmobility/src/messaging/qmessagecontentcontainerid_win.cpp	Mon May 03 13:18:40 2010 +0300
+++ b/qtmobility/src/messaging/qmessagecontentcontainerid_win.cpp	Fri May 14 16:41:33 2010 +0300
@@ -40,6 +40,7 @@
 ****************************************************************************/
 #include "qmessagecontentcontainerid.h"
 #include "qmessagecontentcontainerid_p.h"
+#include "winhelpers_p.h"
 
 QTM_BEGIN_NAMESPACE
 
@@ -58,7 +59,7 @@
     : d_ptr(new QMessageContentContainerIdPrivate)
 {
     if (!id.isEmpty()) {
-        d_ptr->_number = id.toUInt();
+		d_ptr->_number = WinHelpers::stripIdPrefix(id).toUInt();
     }
 }
 
@@ -83,7 +84,7 @@
 
 QString QMessageContentContainerId::toString() const
 {
-    return QString::number(d_ptr->_number);
+	return WinHelpers::addIdPrefix(QString::number(d_ptr->_number));
 }
 
 bool QMessageContentContainerId::isValid() const