diff -r 56cd8111b7f7 -r 41300fa6a67c src/gui/kernel/qclipboard_win.cpp
--- a/src/gui/kernel/qclipboard_win.cpp	Tue Jan 26 12:42:25 2010 +0200
+++ b/src/gui/kernel/qclipboard_win.cpp	Tue Feb 02 00:43:10 2010 +0200
@@ -51,6 +51,7 @@
 #include "qmime.h"
 #include "qt_windows.h"
 #include "qdnd_p.h"
+#include <private/qwidget_p.h>
 
 QT_BEGIN_NAMESPACE
 
@@ -140,6 +141,9 @@
         clipBoardViewer = new QWidget();
         clipBoardViewer->createWinId();
         clipBoardViewer->setObjectName(QLatin1String("internal clipboard owner"));
+        // We dont need this internal widget to appear in QApplication::topLevelWidgets()
+        if (QWidgetPrivate::allWidgets)
+            QWidgetPrivate::allWidgets->remove(clipBoardViewer);
     }
 
     ~QClipboardData()