diff --git a/src/msw/dde.cpp b/src/msw/dde.cpp
index 0787b6d540..e51425d8b3 100644
--- a/src/msw/dde.cpp
+++ b/src/msw/dde.cpp
@@ -191,6 +191,16 @@ extern void wxDDEInitialize()
 
 void wxDDECleanUp()
 {
+    wxDDEClientObjects.DeleteContents(TRUE);
+    wxDDEClientObjects.Clear();
+    wxDDEClientObjects.DeleteContents(FALSE);
+
+    wxDDEServerObjects.DeleteContents(TRUE);
+    wxDDEServerObjects.Clear();
+    wxDDEServerObjects.DeleteContents(FALSE);
+
+    wxAtomTable.Clear();
+
     if ( DDEIdInst != 0 )
     {
         DdeUninitialize(DDEIdInst);