diff --git a/akregator/src/actionmanagerimpl.cpp b/akregator/src/actionmanagerimpl.cpp
index c269500e..7fa61cdc 100644
--- a/akregator/src/actionmanagerimpl.cpp
+++ b/akregator/src/actionmanagerimpl.cpp
@@ -68,6 +68,7 @@ class ActionManagerImpl::NodeSelectVisitor : public TreeNodeVisitor
 {
     public:
     NodeSelectVisitor(ActionManagerImpl* manager) : m_manager(manager) {}
+    virtual ~NodeSelectVisitor() {}
 
     virtual bool visitFeed(Feed* node)
     {
diff --git a/akregator/src/article.cpp b/akregator/src/article.cpp
index 8b62509f..0e01d3e7 100644
--- a/akregator/src/article.cpp
+++ b/akregator/src/article.cpp
@@ -91,6 +91,7 @@ Article::Article(const TQString& guid, Feed* feed) : d(new Private)
     d->guid = guid;
     d->archive = Backend::Storage::getInstance()->archiveFor(feed->xmlUrl());
     d->status = 0;
+    d->hash = 0;
 }
 
 void Article::initialize(RSS::Article article, Backend::FeedStorage* archive)
@@ -101,7 +102,7 @@ void Article::initialize(RSS::Article article, Backend::FeedStorage* archive)
                               + article.commentsLink().url() );
 
     d->guid = article.guid();
-    
+
     if (!d->archive->contains(d->guid))
     {
         d->archive->addEntry(d->guid);
@@ -113,7 +114,7 @@ void Article::initialize(RSS::Article article, Backend::FeedStorage* archive)
         }
         else
         { // article is not deleted, let's add it to the archive
-        
+
             d->archive->setHash(d->guid, hash() );
             TQString title = article.title().isEmpty() ? buildTitle(article.description()) :  article.title();
             d->archive->setTitle(d->guid, title);
@@ -358,7 +359,6 @@ KURL Article::commentsLink() const
 
 int Article::comments() const
 {
-    
     return d->archive->comments(d->guid);
 }
 
diff --git a/akregator/src/articlefilter.h b/akregator/src/articlefilter.h
index 5f1e7af3..535a731e 100644
--- a/akregator/src/articlefilter.h
+++ b/akregator/src/articlefilter.h
@@ -144,6 +144,10 @@ class TagMatcher : public AbstractMatcher
 
 class AbstractAction
 {
+    public:
+        AbstractAction() {}
+        virtual ~AbstractAction() {}
+
     public:
         virtual void exec(Article& article) = 0;
 
diff --git a/akregator/src/articlelistview.cpp b/akregator/src/articlelistview.cpp
index 2324096b..a0e5c8b7 100644
--- a/akregator/src/articlelistview.cpp
+++ b/akregator/src/articlelistview.cpp
@@ -89,6 +89,7 @@ class ArticleListView::ColumnLayoutVisitor : public TreeNodeVisitor
 {
     public:
         ColumnLayoutVisitor(ArticleListView* view) : m_view(view) {}
+        virtual ~ColumnLayoutVisitor() {}
 
         virtual bool visitTagNode(TagNode* /*node*/)
         {
diff --git a/akregator/src/articleviewer.cpp b/akregator/src/articleviewer.cpp
index 96b269e6..3b1cc6db 100644
--- a/akregator/src/articleviewer.cpp
+++ b/akregator/src/articleviewer.cpp
@@ -66,6 +66,7 @@ class ArticleViewer::ShowSummaryVisitor : public TreeNodeVisitor
     public:
     
     ShowSummaryVisitor(ArticleViewer* view) : m_view(view) {}
+    virtual ~ShowSummaryVisitor() {}
     
     virtual bool visitFeed(Feed* node)
     {
diff --git a/akregator/src/feed.cpp b/akregator/src/feed.cpp
index 3b0d8103..7e7f59e8 100644
--- a/akregator/src/feed.cpp
+++ b/akregator/src/feed.cpp
@@ -445,7 +445,7 @@ void Feed::appendArticles(const RSS::Document &doc)
     RSS::Article::List::ConstIterator en = d_articles.end();
 
     int nudge=0;
-    
+
     TQValueList<Article> deletedArticles = d->deletedArticles;
 
     for (it = d_articles.begin(); it != en; ++it)
@@ -460,21 +460,21 @@ void Feed::appendArticles(const RSS::Document &doc)
             TQValueList<ArticleInterceptor*> interceptors = ArticleInterceptorManager::self()->interceptors();
             for (TQValueList<ArticleInterceptor*>::ConstIterator it = interceptors.begin(); it != interceptors.end(); ++it)
                 (*it)->processArticle(mya);
-            
+
             d->addedArticlesNotify.append(mya);
-            
+
             if (!mya.isDeleted() && !markImmediatelyAsRead())
                 mya.setStatus(Article::New);
             else
                 mya.setStatus(Article::Read);
-                
+
             changed = true;
         }
         else // article is in list
         {
             // if the article's guid is no hash but an ID, we have to check if the article was updated. That's done by comparing the hash values.
             Article old = d->articles[(*it).guid()];
-            Article mya(*it, this);          
+            Article mya(*it, this);
             if (!mya.guidIsHash() && mya.hash() != old.hash() && !old.isDeleted())
             {
                 mya.setKeep(old.keep());
@@ -491,7 +491,7 @@ void Feed::appendArticles(const RSS::Document &doc)
             }
             else if (old.isDeleted())
                 deletedArticles.remove(mya);
-        }    
+        }
     }
     
     TQValueList<Article>::ConstIterator dit = deletedArticles.begin();
diff --git a/akregator/src/feedlist.cpp b/akregator/src/feedlist.cpp
index 708b4fb7..0c34e393 100644
--- a/akregator/src/feedlist.cpp
+++ b/akregator/src/feedlist.cpp
@@ -52,6 +52,7 @@ class FeedList::AddNodeVisitor : public TreeNodeVisitor
 {
     public:
         AddNodeVisitor(FeedList* list) : m_list(list) {}
+        virtual ~AddNodeVisitor() {}
 
 
         virtual bool visitFeed(Feed* node)
@@ -69,6 +70,7 @@ class FeedList::RemoveNodeVisitor : public TreeNodeVisitor
 {
     public:
         RemoveNodeVisitor(FeedList* list) : m_list(list) {}
+        virtual ~RemoveNodeVisitor() {}
 
         virtual bool visitFeed(Feed* node)
         {
diff --git a/akregator/src/feedlistview.cpp b/akregator/src/feedlistview.cpp
index d6ea394a..f0a37363 100644
--- a/akregator/src/feedlistview.cpp
+++ b/akregator/src/feedlistview.cpp
@@ -78,6 +78,7 @@ class NodeListView::ConnectNodeVisitor : public TreeNodeVisitor
 {
     public:
         ConnectNodeVisitor(NodeListView* view) : m_view(view) {}
+        virtual ~ConnectNodeVisitor() {}
 
         virtual bool visitTreeNode(TreeNode* node)
         {
@@ -114,6 +115,7 @@ class NodeListView::DisconnectNodeVisitor : public TreeNodeVisitor
 {
     public:
         DisconnectNodeVisitor(NodeListView* view) : m_view(view) {}
+        virtual ~DisconnectNodeVisitor() {}
 
         virtual bool visitTagNode(TagNode* node)
         {
@@ -153,6 +155,7 @@ class NodeListView::DeleteItemVisitor : public TreeNodeVisitor
     public:
         
         DeleteItemVisitor(NodeListView* view) : m_view(view) {}
+        virtual ~DeleteItemVisitor() {}
         
         virtual bool visitTreeNode(TreeNode* node)
         {
@@ -204,6 +207,7 @@ class NodeListView::CreateItemVisitor : public TreeNodeVisitor
 {
     public:
         CreateItemVisitor(NodeListView* view) : m_view(view) {}
+        virtual ~CreateItemVisitor() {}
 
         virtual bool visitTagNode(TagNode* node)
         {
diff --git a/akregator/src/plugin.cpp b/akregator/src/plugin.cpp
index 495dabc3..a90136b8 100644
--- a/akregator/src/plugin.cpp
+++ b/akregator/src/plugin.cpp
@@ -8,11 +8,13 @@ namespace Akregator {
 
 
 Plugin::Plugin()
-{}
+{
+}
 
 
 Plugin::~Plugin()
-{}
+{
+}
 
 
 void
diff --git a/akregator/src/plugin.h b/akregator/src/plugin.h
index 650a4a92..f4408420 100644
--- a/akregator/src/plugin.h
+++ b/akregator/src/plugin.h
@@ -14,7 +14,6 @@
 #include <tqmap.h>
 #include <tqstring.h>
 
-
 namespace Akregator
 {
 //    class PluginConfig;
diff --git a/akregator/src/simplenodeselector.cpp b/akregator/src/simplenodeselector.cpp
index 4291bb45..a4f1d4be 100644
--- a/akregator/src/simplenodeselector.cpp
+++ b/akregator/src/simplenodeselector.cpp
@@ -93,6 +93,7 @@ class SimpleNodeSelector::NodeVisitor : public TreeNodeVisitor
     public:
 
     NodeVisitor(SimpleNodeSelector* view) : TreeNodeVisitor(), m_view(view) {}
+    virtual ~NodeVisitor() {}
 
     void createItems(TreeNode* node)
     {
diff --git a/akregator/src/storagefactory.h b/akregator/src/storagefactory.h
index 93ab7f75..3505ef44 100644
--- a/akregator/src/storagefactory.h
+++ b/akregator/src/storagefactory.h
@@ -38,18 +38,21 @@ class Storage;
 class AKREGATOR_EXPORT StorageFactory
 {
     public:
-    
+
+    StorageFactory() {}
+    virtual ~StorageFactory() {}
+
     /** identifier of the storage type, like "metakit", "postgres" etc. For use in
         configuration files. Must not contain spaces or special characters.
      */
     virtual TQString key() const = 0;
-    
+
     /** returns the (i18n'd) name of the storage type. */
     virtual TQString name() const = 0;
 
     /** true if the plugin is configurable via a config dialog */
     virtual bool isConfigurable() const = 0;
-    
+
     /** shows the plugin's configuration dialog */
     virtual void configure() = 0;
 
@@ -59,11 +62,11 @@ class AKREGATOR_EXPORT StorageFactory
      * write access.
      */
     virtual bool allowsMultipleWriteAccess() const = 0;
-    
+
     /** creates a storage object with given parameters
         @param params list of implementation-specific parameters
      */
-	virtual Storage* createStorage(const TQStringList& params) const = 0;
+    virtual Storage* createStorage(const TQStringList& params) const = 0;
 };
 
 }
diff --git a/kontact/interfaces/plugin.h b/kontact/interfaces/plugin.h
index c4d573ab..3d8c66cf 100644
--- a/kontact/interfaces/plugin.h
+++ b/kontact/interfaces/plugin.h
@@ -58,7 +58,6 @@ class Summary;
 class KDE_EXPORT Plugin : public TQObject, virtual public KXMLGUIClient
 {
   Q_OBJECT
-  
 
   public:
     /**
@@ -71,7 +70,7 @@ class KDE_EXPORT Plugin : public TQObject, virtual public KXMLGUIClient
     */
     Plugin( Core *core, TQObject *parent, const char *name );
 
-    ~Plugin();
+    virtual ~Plugin();
 
     /**
       Sets the identifier.
diff --git a/kontact/interfaces/uniqueapphandler.h b/kontact/interfaces/uniqueapphandler.h
index 3af1a877..6ecc2381 100644
--- a/kontact/interfaces/uniqueapphandler.h
+++ b/kontact/interfaces/uniqueapphandler.h
@@ -63,6 +63,8 @@ class KDE_EXPORT UniqueAppHandler : public DCOPObject
 class UniqueAppHandlerFactoryBase
 {
   public:
+    UniqueAppHandlerFactoryBase() {}
+    virtual ~UniqueAppHandlerFactoryBase() {}
     virtual UniqueAppHandler* createHandler( Plugin* ) = 0;
 };
 
diff --git a/kontact/plugins/akregator/akregator_plugin.cpp b/kontact/plugins/akregator/akregator_plugin.cpp
index 01997690..a7a7fa7a 100644
--- a/kontact/plugins/akregator/akregator_plugin.cpp
+++ b/kontact/plugins/akregator/akregator_plugin.cpp
@@ -44,14 +44,13 @@
 #include "akregator_plugin.h"
 namespace Akregator {
 
-typedef KGenericFactory<Akregator::Plugin, Kontact::Core > PluginFactory;
+typedef KGenericFactory<Akregator::AkregatorPlugin, Kontact::Core > PluginFactory;
 K_EXPORT_COMPONENT_FACTORY( libkontact_akregator,
                             PluginFactory( "kontact_akregator" ) )
 
-Plugin::Plugin( Kontact::Core *core, const char *, const TQStringList& )
+AkregatorPlugin::AkregatorPlugin( Kontact::Core *core, const char *, const TQStringList& )
   : Kontact::Plugin( core, TQT_TQOBJECT(core), "akregator" ), m_stub(0)
 {
-
     setInstance( PluginFactory::instance() );
 
     insertNewAction( new TDEAction( i18n( "New Feed..." ), "bookmark_add", CTRL+SHIFT+Key_F, this, TQT_SLOT( addFeed() ), actionCollection(), "feed_new" ) );
@@ -60,22 +59,22 @@ Plugin::Plugin( Kontact::Core *core, const char *, const TQStringList& )
 	new Kontact::UniqueAppHandlerFactory<Akregator::UniqueAppHandler>(), this );
 }
 
-Plugin::~Plugin()
+AkregatorPlugin::~AkregatorPlugin()
 {
 }
 
-bool Plugin::isRunningStandalone()
+bool AkregatorPlugin::isRunningStandalone()
 {
     return m_uniqueAppWatcher->isRunningStandalone();
 }
 
-TQStringList Plugin::invisibleToolbarActions() const
+TQStringList AkregatorPlugin::invisibleToolbarActions() const
 {
     return TQStringList( "file_new_contact" );
 }
 
 
-Akregator::AkregatorPartIface_stub *Plugin::interface()
+Akregator::AkregatorPartIface_stub *AkregatorPlugin::interface()
 {
     if ( !m_stub ) {
         part();
@@ -86,7 +85,7 @@ Akregator::AkregatorPartIface_stub *Plugin::interface()
 }
 
 
-MyBasePart* Plugin::createPart()
+MyBasePart* AkregatorPlugin::createPart()
 {
     MyBasePart* p = loadPart();
 
@@ -98,24 +97,24 @@ MyBasePart* Plugin::createPart()
 }
 
 
-void Plugin::showPart()
+void AkregatorPlugin::showPart()
 {
     core()->selectPlugin(this);
 }
 
-void Plugin::addFeed()
+void AkregatorPlugin::addFeed()
 {
     interface()->addFeed();
 }
 
-TQStringList Plugin::configModules() const
+TQStringList AkregatorPlugin::configModules() const
 {
     TQStringList modules;
     modules << "PIM/akregator.desktop";
     return modules;
 }
 
-void Plugin::readProperties( TDEConfig *config )
+void AkregatorPlugin::readProperties( TDEConfig *config )
 {
     if ( part() ) {
         Akregator::Part *myPart = static_cast<Akregator::Part*>( part() );    
@@ -123,7 +122,7 @@ void Plugin::readProperties( TDEConfig *config )
     }
 }
 
-void Plugin::saveProperties( TDEConfig *config )
+void AkregatorPlugin::saveProperties( TDEConfig *config )
 {
     if ( part() ) {
         Akregator::Part *myPart = static_cast<Akregator::Part*>( part() );    
diff --git a/kontact/plugins/akregator/akregator_plugin.h b/kontact/plugins/akregator/akregator_plugin.h
index 479ca896..041d7a97 100644
--- a/kontact/plugins/akregator/akregator_plugin.h
+++ b/kontact/plugins/akregator/akregator_plugin.h
@@ -48,15 +48,14 @@ class UniqueAppHandler : public Kontact::UniqueAppHandler
 };
 
 
-class Plugin : public Kontact::Plugin
+class AkregatorPlugin : public Kontact::Plugin
 {
   Q_OBJECT
-  
 
   public:
-    Plugin( Kontact::Core *core, const char *name,
+    AkregatorPlugin( Kontact::Core *core, const char *name,
                        const TQStringList & );
-    ~Plugin();
+    virtual ~AkregatorPlugin();
 
     int weight() const { return 475; }
 
diff --git a/kontact/plugins/kaddressbook/kaddressbook_plugin.h b/kontact/plugins/kaddressbook/kaddressbook_plugin.h
index b3a8fee8..3db624ce 100644
--- a/kontact/plugins/kaddressbook/kaddressbook_plugin.h
+++ b/kontact/plugins/kaddressbook/kaddressbook_plugin.h
@@ -45,11 +45,10 @@ public:
 class KAddressbookPlugin : public Kontact::Plugin
 {
   Q_OBJECT
-  
 
   public:
     KAddressbookPlugin( Kontact::Core *core, const char *name, const TQStringList& );
-    ~KAddressbookPlugin();
+    virtual ~KAddressbookPlugin();
 
     virtual bool createDCOPInterface( const TQString &serviceType );
     virtual bool isRunningStandalone();
diff --git a/kontact/plugins/karm/karm_plugin.h b/kontact/plugins/karm/karm_plugin.h
index e65f8ff9..f2f6259b 100644
--- a/kontact/plugins/karm/karm_plugin.h
+++ b/kontact/plugins/karm/karm_plugin.h
@@ -37,12 +37,11 @@ class TDEAboutData;
 class KarmPlugin : public Kontact::Plugin
 {
   Q_OBJECT
-  
 
   public:
     KarmPlugin( Kontact::Core *core, const char *name,
                        const TQStringList & );
-    ~KarmPlugin();
+    virtual ~KarmPlugin();
 
     int weight() const { return 700; }
 
diff --git a/kontact/plugins/kitchensync/kitchensync_plugin.h b/kontact/plugins/kitchensync/kitchensync_plugin.h
index 5e961036..b484e32e 100644
--- a/kontact/plugins/kitchensync/kitchensync_plugin.h
+++ b/kontact/plugins/kitchensync/kitchensync_plugin.h
@@ -35,12 +35,11 @@ class TDEAboutData;
 class KitchenSyncPlugin : public Kontact::Plugin
 {
   Q_OBJECT
-  
 
   public:
     KitchenSyncPlugin( Kontact::Core *core, const char *name,
                        const TQStringList & );
-    ~KitchenSyncPlugin();
+    virtual ~KitchenSyncPlugin();
 
     int weight() const { return 800; }
 
diff --git a/kontact/plugins/kmail/kmail_plugin.h b/kontact/plugins/kmail/kmail_plugin.h
index eb1914ec..923fd3a8 100644
--- a/kontact/plugins/kmail/kmail_plugin.h
+++ b/kontact/plugins/kmail/kmail_plugin.h
@@ -46,11 +46,10 @@ public:
 class KMailPlugin : public Kontact::Plugin
 {
   Q_OBJECT
-  
 
   public:
     KMailPlugin( Kontact::Core *core, const char *name, const TQStringList& );
-    ~KMailPlugin();
+    virtual ~KMailPlugin();
 
     virtual bool isRunningStandalone();
     virtual bool createDCOPInterface( const TQString& serviceType );
diff --git a/kontact/plugins/knode/knode_plugin.h b/kontact/plugins/knode/knode_plugin.h
index 460e0603..4b1cb21e 100644
--- a/kontact/plugins/knode/knode_plugin.h
+++ b/kontact/plugins/knode/knode_plugin.h
@@ -43,11 +43,10 @@ public:
 class KNodePlugin : public Kontact::Plugin
 {
   Q_OBJECT
-  
 
   public:
     KNodePlugin( Kontact::Core *core, const char *name, const TQStringList& );
-    ~KNodePlugin();
+    virtual ~KNodePlugin();
 
     virtual bool createDCOPInterface( const TQString& serviceType );
     virtual bool isRunningStandalone();
diff --git a/kontact/plugins/knotes/knotes_plugin.h b/kontact/plugins/knotes/knotes_plugin.h
index 01606fba..069f10fb 100644
--- a/kontact/plugins/knotes/knotes_plugin.h
+++ b/kontact/plugins/knotes/knotes_plugin.h
@@ -32,11 +32,10 @@ class SummaryWidget;
 class KNotesPlugin : public Kontact::Plugin
 {
   Q_OBJECT
-  
 
   public:
     KNotesPlugin( Kontact::Core *core, const char *name, const TQStringList& );
-    ~KNotesPlugin();
+    virtual ~KNotesPlugin();
 
     virtual Kontact::Summary *createSummaryWidget( TQWidget *parentWidget );
 
diff --git a/kontact/plugins/korganizer/korganizerplugin.h b/kontact/plugins/korganizer/korganizerplugin.h
index 65a4d053..3aaa4083 100644
--- a/kontact/plugins/korganizer/korganizerplugin.h
+++ b/kontact/plugins/korganizer/korganizerplugin.h
@@ -36,11 +36,10 @@
 class KOrganizerPlugin : public Kontact::Plugin
 {
   Q_OBJECT
-  
 
   public:
     KOrganizerPlugin( Kontact::Core *core, const char *name, const TQStringList& );
-    ~KOrganizerPlugin();
+    virtual ~KOrganizerPlugin();
 
     virtual bool createDCOPInterface( const TQString& serviceType );
     virtual bool isRunningStandalone();
diff --git a/kontact/plugins/kpilot/kpilot_plugin.cpp b/kontact/plugins/kpilot/kpilot_plugin.cpp
index 188457c2..81053917 100644
--- a/kontact/plugins/kpilot/kpilot_plugin.cpp
+++ b/kontact/plugins/kpilot/kpilot_plugin.cpp
@@ -43,6 +43,10 @@ KPilotPlugin::KPilotPlugin( Kontact::Core *core, const char *name, const TQStrin
 
 }
 
+KPilotPlugin::~KPilotPlugin()
+{
+}
+
 Kontact::Summary *KPilotPlugin::createSummaryWidget( TQWidget *parentWidget )
 {
   return new SummaryWidget( parentWidget );
diff --git a/kontact/plugins/kpilot/kpilot_plugin.h b/kontact/plugins/kpilot/kpilot_plugin.h
index 66a4d042..478dcedb 100644
--- a/kontact/plugins/kpilot/kpilot_plugin.h
+++ b/kontact/plugins/kpilot/kpilot_plugin.h
@@ -32,6 +32,7 @@ class KPilotPlugin : public Kontact::Plugin
   public:
     KPilotPlugin( Kontact::Core *core, const char *name, const TQStringList& );
     KPilotPlugin();
+    virtual ~KPilotPlugin();
 
     virtual Kontact::Summary *createSummaryWidget( TQWidget *parentWidget );
 
diff --git a/kontact/plugins/newsticker/newsticker_plugin.cpp b/kontact/plugins/newsticker/newsticker_plugin.cpp
index b00cc0ac..04d46883 100644
--- a/kontact/plugins/newsticker/newsticker_plugin.cpp
+++ b/kontact/plugins/newsticker/newsticker_plugin.cpp
@@ -37,6 +37,10 @@ NewsTickerPlugin::NewsTickerPlugin( Kontact::Core *core, const char *name, const
 	setInstance( NewsTickerPluginFactory::instance() );
 }
 
+NewsTickerPlugin::~NewsTickerPlugin()
+{
+}
+
 Kontact::Summary *NewsTickerPlugin::createSummaryWidget( TQWidget* parentWidget )
 {
   return new SummaryWidget( parentWidget );
diff --git a/kontact/plugins/newsticker/newsticker_plugin.h b/kontact/plugins/newsticker/newsticker_plugin.h
index b3c0b651..ebaf34b4 100644
--- a/kontact/plugins/newsticker/newsticker_plugin.h
+++ b/kontact/plugins/newsticker/newsticker_plugin.h
@@ -30,6 +30,7 @@ class NewsTickerPlugin : public Kontact::Plugin
   public:
     NewsTickerPlugin( Kontact::Core *core, const char *name, const TQStringList& );
     NewsTickerPlugin();
+    virtual ~NewsTickerPlugin();
 
     virtual Kontact::Summary *createSummaryWidget( TQWidget* parentWidget );
 
diff --git a/kontact/plugins/specialdates/specialdates_plugin.h b/kontact/plugins/specialdates/specialdates_plugin.h
index 53c0621e..e0ac8a0e 100644
--- a/kontact/plugins/specialdates/specialdates_plugin.h
+++ b/kontact/plugins/specialdates/specialdates_plugin.h
@@ -33,7 +33,7 @@ class SpecialdatesPlugin : public Kontact::Plugin
 {
   public:
     SpecialdatesPlugin( Kontact::Core *core, const char *name, const TQStringList& );
-    ~SpecialdatesPlugin();
+    virtual ~SpecialdatesPlugin();
 
     int weight() const { return 310; }
 
diff --git a/kontact/plugins/summary/summaryview_plugin.h b/kontact/plugins/summary/summaryview_plugin.h
index 41d59896..5ea25786 100644
--- a/kontact/plugins/summary/summaryview_plugin.h
+++ b/kontact/plugins/summary/summaryview_plugin.h
@@ -1,7 +1,7 @@
 /*
    This file is part of KDE Kontact.
 
-   Copyright (C) 2003 Sven Lüppken <sven@kde.org>
+   Copyright (C) 2003 Sven L�ppken <sven@kde.org>
 
    This library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Library General Public
@@ -39,7 +39,7 @@ class SummaryView : public Kontact::Plugin
 
   public:
     SummaryView( Kontact::Core *core, const char *name, const TQStringList& );
-	  ~SummaryView();
+    virtual ~SummaryView();
 
     int weight() const { return 100; }
 
diff --git a/kontact/plugins/test/test_plugin.h b/kontact/plugins/test/test_plugin.h
index 256fb520..2a541c84 100644
--- a/kontact/plugins/test/test_plugin.h
+++ b/kontact/plugins/test/test_plugin.h
@@ -39,7 +39,7 @@ class TestPlugin : public Kontact::Plugin
 public:
 
   TestPlugin(Kontact::Core *core, const char *name, const TQStringList &);
-  ~TestPlugin();
+  virtual ~TestPlugin();
 
 protected:
   KParts::Part* createPart();
diff --git a/kontact/plugins/weather/weather_plugin.cpp b/kontact/plugins/weather/weather_plugin.cpp
index a1decfbb..93a97bfc 100644
--- a/kontact/plugins/weather/weather_plugin.cpp
+++ b/kontact/plugins/weather/weather_plugin.cpp
@@ -37,6 +37,10 @@ WeatherPlugin::WeatherPlugin( Kontact::Core *core, const char *name, const TQStr
   setInstance( WeatherPluginFactory::instance() );
 }
 
+WeatherPlugin::~WeatherPlugin()
+{
+}
+
 Kontact::Summary *WeatherPlugin::createSummaryWidget( TQWidget *parentWidget )
 {
   return new SummaryWidget( parentWidget );
diff --git a/kontact/plugins/weather/weather_plugin.h b/kontact/plugins/weather/weather_plugin.h
index ecf2a6fe..a7eb5b61 100644
--- a/kontact/plugins/weather/weather_plugin.h
+++ b/kontact/plugins/weather/weather_plugin.h
@@ -30,6 +30,7 @@ class WeatherPlugin : public Kontact::Plugin
   public:
     WeatherPlugin( Kontact::Core *core, const char *name, const TQStringList& );
     WeatherPlugin();
+    virtual ~WeatherPlugin();
 
     virtual Kontact::Summary *createSummaryWidget( TQWidget *parentWidget );
 
diff --git a/korganizer/printing/cellitem.h b/korganizer/printing/cellitem.h
index 9e1beb6c..e4a37da0 100644
--- a/korganizer/printing/cellitem.h
+++ b/korganizer/printing/cellitem.h
@@ -38,13 +38,14 @@ class KDE_EXPORT CellItem
       : mSubCells( 0 ), mSubCell( -1 )
     {
     }
-  
+    virtual ~CellItem() {}
+
     void setSubCells( int v ) { mSubCells = v; }
     int subCells() const { return mSubCells; }
-    
+
     void setSubCell( int v ) { mSubCell = v; }
     int subCell() const { return mSubCell; }
-    
+
     virtual bool overlaps( CellItem *other ) const = 0;
 
     virtual TQString label() const;
diff --git a/ktnef/gui/qwmf.cpp b/ktnef/gui/qwmf.cpp
index bc31584c..37eaa170 100644
--- a/ktnef/gui/qwmf.cpp
+++ b/ktnef/gui/qwmf.cpp
@@ -50,6 +50,8 @@ public:
 class WinObjHandle
 {
 public:
+    WinObjHandle() {}
+    virtual ~WinObjHandle() {}
     virtual void apply( TQPainter& p ) = 0;
 };
 
diff --git a/libkcal/calendarresources.h b/libkcal/calendarresources.h
index c9d2e334..bb756f85 100644
--- a/libkcal/calendarresources.h
+++ b/libkcal/calendarresources.h
@@ -77,6 +77,7 @@ class LIBKCAL_EXPORT CalendarResources :
         DestinationPolicy( CalendarResourceManager *manager,
                               TQWidget *parent = 0  ) :
           mManager( manager ), mParent( parent ) {}
+        virtual ~DestinationPolicy() {}
 
         virtual ResourceCalendar *destination( Incidence *incidence ) = 0;
         virtual TQWidget *parent() { return mParent; }
@@ -100,6 +101,7 @@ class LIBKCAL_EXPORT CalendarResources :
         StandardDestinationPolicy( CalendarResourceManager *manager,
                               TQWidget *parent = 0  ) :
           DestinationPolicy( manager, parent ) {}
+        virtual ~StandardDestinationPolicy() {}
 
         ResourceCalendar *destination( Incidence *incidence );
 
@@ -117,6 +119,7 @@ class LIBKCAL_EXPORT CalendarResources :
         AskDestinationPolicy( CalendarResourceManager *manager,
                               TQWidget *parent = 0 ) :
           DestinationPolicy( manager, parent ) {}
+        virtual ~AskDestinationPolicy() {}
 
         ResourceCalendar *destination( Incidence *incidence );
 
diff --git a/libtdepim/alarmclient.cpp b/libtdepim/alarmclient.cpp
index b41cc2a9..50e7b960 100644
--- a/libtdepim/alarmclient.cpp
+++ b/libtdepim/alarmclient.cpp
@@ -34,6 +34,10 @@ AlarmClient::AlarmClient()
   kdDebug(5850) << "AlarmClient::AlarmClient()" << endl;
 }
 
+AlarmClient::~AlarmClient()
+{
+}
+
 void AlarmClient::startDaemon()
 {
   if ( kapp->dcopClient()->isApplicationRegistered( "korgac" ) ) {
diff --git a/libtdepim/alarmclient.h b/libtdepim/alarmclient.h
index 2d294143..c22ef420 100644
--- a/libtdepim/alarmclient.h
+++ b/libtdepim/alarmclient.h
@@ -29,6 +29,7 @@ class AlarmClient
 {
   public:
     AlarmClient();
+    virtual ~AlarmClient();
 
     /**
       Start alarm daemon.
diff --git a/wizards/kmailchanges.h b/wizards/kmailchanges.h
index b098b08d..e17baa95 100644
--- a/wizards/kmailchanges.h
+++ b/wizards/kmailchanges.h
@@ -35,6 +35,8 @@ class CreateImapAccount : public TDEConfigPropagator::Change
     class CustomWriter
     {
       public:
+        CustomWriter() {}
+        virtual ~CustomWriter() {}
         virtual void writeFolder( TDEConfig &, int folderId ) = 0;
         virtual void writeIds( int accountId, int transportId ) = 0;
     };