3 files changed, 7 insertions, 2 deletions

diff --git a/noncore/applets/autorotateapplet/autorotateimpl.cpp b/noncore/applets/autorotateapplet/autorotateimpl.cpp
index 01d8a01..1b15c6d 100644
--- a/noncore/applets/autorotateapplet/autorotateimpl.cpp
+++ b/noncore/applets/autorotateapplet/autorotateimpl.cpp
@@ -23,17 +23,18 @@ int AutoRotateImpl::position() const {
 }
 
 QRESULT AutoRotateImpl::queryInterface( const QUuid &uuid, QUnknownInterface **iface ) {
     *iface = 0;
     if ( uuid == IID_QUnknown ) {
         *iface = this;
     } else if ( uuid == IID_TaskbarApplet ) {
         *iface = this;
-    }
+    } else
+        return QS_FALSE;
 
     if ( *iface ) {
         (*iface)->addRef();
     }
     return QS_OK;
 }
 
 Q_EXPORT_INTERFACE() {
diff --git a/noncore/applets/notesapplet/notesappletimpl.cpp b/noncore/applets/notesapplet/notesappletimpl.cpp
index 0526bad..93de433 100644
--- a/noncore/applets/notesapplet/notesappletimpl.cpp
+++ b/noncore/applets/notesapplet/notesappletimpl.cpp
@@ -33,16 +33,18 @@ int NotesAppletImpl::position() const {
 }
 
 QRESULT NotesAppletImpl::queryInterface( const QUuid &uuid, QUnknownInterface **iface ) {
     *iface = 0;
     if ( uuid == IID_QUnknown )
   *iface = this;
     else if ( uuid == IID_TaskbarApplet )
   *iface = this;
+    else
+        return QS_FALSE;
 
     if ( *iface )
   (*iface)->addRef();
     return QS_OK;
 }
 
 Q_EXPORT_INTERFACE() {
     Q_CREATE_INSTANCE( NotesAppletImpl )
diff --git a/noncore/applets/wirelessapplet/wirelessappletimpl.cpp b/noncore/applets/wirelessapplet/wirelessappletimpl.cpp
index eb00459..8b7afcf 100644
--- a/noncore/applets/wirelessapplet/wirelessappletimpl.cpp
+++ b/noncore/applets/wirelessapplet/wirelessappletimpl.cpp
@@ -45,17 +45,19 @@ int WirelessAppletImpl::position() const
 
 QRESULT WirelessAppletImpl::queryInterface( const QUuid &uuid, QUnknownInterface **iface )
 {
     *iface = 0;
     if ( uuid == IID_QUnknown )
   *iface = this;
     else if ( uuid == IID_TaskbarApplet )
   *iface = this;
-
+    else
+        return QS_FALSE;
+        
     if ( *iface )
   (*iface)->addRef();
     return QS_OK;
 }
 
 Q_EXPORT_INTERFACE()
 {
     Q_CREATE_INSTANCE( WirelessAppletImpl )