diff --git a/config.cc b/config.cc
index 4c1033b8a..361879701 100644
--- a/config.cc
+++ b/config.cc
@@ -1966,6 +1966,14 @@ QString getLocDir() throw()
     return QCoreApplication::applicationDirPath() + "/locale";
 }
 
+QString getHelpDir() throw()
+{
+  if ( QDir( getProgramDataDir() ).cd( "help" ) )
+    return getProgramDataDir() + "/help";
+  else
+    return QCoreApplication::applicationDirPath() + "/help";
+}
+
 bool isPortableVersion() throw()
 {
   struct IsPortable
diff --git a/config.hh b/config.hh
index 81cf7784e..9c6591825 100644
--- a/config.hh
+++ b/config.hh
@@ -641,6 +641,9 @@ QString getProgramDataDir() throw();
 /// Returns the directory storing program localizized files (.qm).
 QString getLocDir() throw();
 
+/// Returns the directory storing program help files (.qch).
+QString getHelpDir() throw();
+
 /// Returns true if the program is configured as a portable version. In that
 /// mode, all the settings and indices are kept in the program's directory.
 bool isPortableVersion() throw();
diff --git a/dictheadwords.cc b/dictheadwords.cc
index 26b038f01..8867448c9 100644
--- a/dictheadwords.cc
+++ b/dictheadwords.cc
@@ -3,6 +3,7 @@
 
 #include "dictheadwords.hh"
 #include "gddebug.hh"
+#include "mainwindow.hh"
 
 #include <QRegExp>
 #include <QDir>
@@ -17,6 +18,7 @@ DictHeadwords::DictHeadwords( QWidget *parent, Config::Class & cfg_,
   QDialog(parent)
 , cfg( cfg_ )
 , dict( dict_ )
+, helpAction( this )
 {
   ui.setupUi( this );
 
@@ -83,6 +85,17 @@ DictHeadwords::DictHeadwords( QWidget *parent, Config::Class & cfg_,
   connect( proxy, SIGNAL( dataChanged( QModelIndex, QModelIndex ) ),
            this, SLOT( showHeadwordsNumber() ) );
 
+  connect( ui.helpButton, SIGNAL( clicked() ),
+           this, SLOT( helpRequested() ) );
+
+  helpAction.setShortcut( QKeySequence( "F1" ) );
+  helpAction.setShortcutContext( Qt::WidgetWithChildrenShortcut );
+
+  connect( &helpAction, SIGNAL( triggered() ),
+           this, SLOT( helpRequested() ) );
+
+  addAction( &helpAction );
+
   ui.headersListView->installEventFilter( this );
 
   setup( dict_ );
@@ -304,3 +317,10 @@ void DictHeadwords::saveHeadersToFile()
   gdWarning( "Headers export error: %s", file.errorString().toUtf8().data() );
   file.close();
 }
+
+void DictHeadwords::helpRequested()
+{
+  MainWindow * mainWindow = qobject_cast< MainWindow * >( parentWidget() );
+  if( mainWindow )
+    mainWindow->showGDHelpForID( "Dictionary headwords" );
+}
diff --git a/dictheadwords.hh b/dictheadwords.hh
index aa4383b4d..28c7de3f5 100644
--- a/dictheadwords.hh
+++ b/dictheadwords.hh
@@ -7,11 +7,13 @@
 #include <QStringList>
 #include <QStringListModel>
 #include <QSortFilterProxyModel>
+#include <QAction>
 
 #include "config.hh"
 #include "ui_dictheadwords.h"
 #include "dictionary.hh"
 #include "delegate.hh"
+#include "helpwindow.hh"
 
 class DictHeadwords : public QDialog
 {
@@ -32,6 +34,8 @@ protected:
   QSortFilterProxyModel * proxy;
   WordListItemDelegate * delegate;
 
+  QAction helpAction;
+
   void saveHeadersToFile();
   bool eventFilter( QObject * obj, QEvent * ev );
 
@@ -47,6 +51,7 @@ private slots:
   void autoApplyStateChanged( int state );
   void showHeadwordsNumber();
   virtual void reject();
+  void helpRequested();
 
 signals:
   void headwordSelected( QString const & );
diff --git a/dictheadwords.ui b/dictheadwords.ui
index 6f2f4346b..4989edac2 100644
--- a/dictheadwords.ui
+++ b/dictheadwords.ui
@@ -73,6 +73,16 @@
          </property>
         </spacer>
        </item>
+       <item>
+        <widget class="QPushButton" name="helpButton">
+         <property name="text">
+          <string>Help</string>
+         </property>
+         <property name="autoDefault">
+          <bool>false</bool>
+         </property>
+        </widget>
+       </item>
        <item>
         <widget class="QPushButton" name="OKButton">
          <property name="text">
diff --git a/editdictionaries.cc b/editdictionaries.cc
index 89471fb24..38712048a 100644
--- a/editdictionaries.cc
+++ b/editdictionaries.cc
@@ -4,6 +4,7 @@
 #include "editdictionaries.hh"
 #include "loaddictionaries.hh"
 #include "dictinfo.hh"
+#include "mainwindow.hh"
 #include <QMessageBox>
 
 using std::vector;
@@ -23,6 +24,8 @@ EditDictionaries::EditDictionaries( QWidget * parent, Config::Class & cfg_,
   dictionariesChanged( false ),
   groupsChanged( false ),
   lastCurrentTab( 0 )
+, helpWindow( 0 )
+, helpAction( this )
 {
   // Some groups may have contained links to non-existnent dictionaries. We
   // would like to preserve them if no edits were done. To that end, we save
@@ -52,6 +55,18 @@ EditDictionaries::EditDictionaries( QWidget * parent, Config::Class & cfg_,
 
   connect( orderAndProps.get(), SIGNAL( showDictionaryHeadwords( QString const & ) ),
            this, SIGNAL( showDictionaryHeadwords( QString const & ) ) );
+
+  connect( ui.buttons, SIGNAL( helpRequested() ),
+           this, SLOT( helpRequested() ) );
+
+  helpAction.setShortcut( QKeySequence( "F1" ) );
+  helpAction.setShortcutContext( Qt::WidgetWithChildrenShortcut );
+
+  connect( &helpAction, SIGNAL( triggered() ),
+           this, SLOT( helpRequested() ) );
+
+  addAction( &helpAction );
+
 }
 
 void EditDictionaries::editGroup( unsigned id )
@@ -241,3 +256,38 @@ void EditDictionaries::acceptChangedSources( bool rebuildGroups )
       origCfg.inactiveDictionaries = orderAndProps->getCurrentInactiveDictionaries();
   }
 }
+
+void EditDictionaries::helpRequested()
+{
+  if( !helpWindow )
+  {
+    MainWindow * mainWindow = qobject_cast< MainWindow * >( parentWidget() );
+    if( mainWindow )
+      mainWindow->closeGDHelp();
+
+    helpWindow = new Help::HelpWindow( this, cfg );
+
+    if( helpWindow )
+    {
+      helpWindow->setWindowFlags( Qt::Window );
+
+      connect( helpWindow, SIGNAL( needClose() ),
+               this, SLOT( closeHelp() ) );
+      helpWindow->showHelpFor( "Manage dictionaries" );
+      helpWindow->show();
+    }
+  }
+  else
+  {
+    if( !helpWindow->isVisible() )
+      helpWindow->show();
+
+    helpWindow->activateWindow();
+  }
+}
+
+void EditDictionaries::closeHelp()
+{
+  if( helpWindow )
+    helpWindow->hide();
+}
diff --git a/editdictionaries.hh b/editdictionaries.hh
index 42fd1338a..14affb183 100644
--- a/editdictionaries.hh
+++ b/editdictionaries.hh
@@ -11,7 +11,9 @@
 #include "orderandprops.hh"
 #include "groups.hh"
 #include "instances.hh"
+#include "helpwindow.hh"
 #include <QNetworkAccessManager>
+#include <QAction>
 
 class EditDictionaries: public QDialog
 {
@@ -24,6 +26,9 @@ public:
                     Instances::Groups & groupInstances, // We only clear those on rescan
                     QNetworkAccessManager & dictNetMgr );
 
+  ~EditDictionaries()
+  { if( helpWindow ) delete helpWindow; }
+
   /// Instructs the dialog to position itself on editing the given group.
   void editGroup( unsigned id );
 
@@ -47,6 +52,9 @@ private slots:
 
   void rescanSources();
 
+  void helpRequested();
+  void closeHelp();
+
 signals:
 
   void showDictionaryInfo( QString const & dictId );
@@ -79,7 +87,10 @@ private:
   bool dictionariesChanged;
   bool groupsChanged;
   
-  int lastCurrentTab;  
+  int lastCurrentTab;
+
+  Help::HelpWindow * helpWindow;
+  QAction helpAction;
 };
 
 #endif
diff --git a/editdictionaries.ui b/editdictionaries.ui
index 3e40ded8b..4553d6926 100644
--- a/editdictionaries.ui
+++ b/editdictionaries.ui
@@ -32,7 +32,7 @@
       <enum>Qt::Horizontal</enum>
      </property>
      <property name="standardButtons">
-      <set>QDialogButtonBox::Apply|QDialogButtonBox::Cancel|QDialogButtonBox::Ok</set>
+      <set>QDialogButtonBox::Apply|QDialogButtonBox::Cancel|QDialogButtonBox::Help|QDialogButtonBox::Ok</set>
      </property>
     </widget>
    </item>
diff --git a/fulltextsearch.cc b/fulltextsearch.cc
index baf603c59..e043bf0dd 100644
--- a/fulltextsearch.cc
+++ b/fulltextsearch.cc
@@ -4,6 +4,7 @@
 #include "fulltextsearch.hh"
 #include "ftshelpers.hh"
 #include "gddebug.hh"
+#include "mainwindow.hh"
 
 #include <QThreadPool>
 #include <QIntValidator>
@@ -126,6 +127,7 @@ FullTextSearchDialog::FullTextSearchDialog( QWidget * parent,
   groups( groups_ ),
   group( 0 ),
   ftsIdx( ftsidx )
+, helpAction( this )
 {
   ui.setupUi( this );
 
@@ -192,6 +194,17 @@ FullTextSearchDialog::FullTextSearchDialog( QWidget * parent,
   connect( ui.OKButton, SIGNAL( clicked() ), this, SLOT( accept() ) );
   connect( ui.cancelButton, SIGNAL( clicked() ), this, SLOT( reject() ) );
 
+  connect( ui.helpButton, SIGNAL( clicked() ),
+           this, SLOT( helpRequested() ) );
+
+  helpAction.setShortcut( QKeySequence( "F1" ) );
+  helpAction.setShortcutContext( Qt::WidgetWithChildrenShortcut );
+
+  connect( &helpAction, SIGNAL( triggered() ),
+           this, SLOT( helpRequested() ) );
+
+  addAction( &helpAction );
+
   ui.headwordsView->installEventFilter( this );
 
   delegate = new WordListItemDelegate( ui.headwordsView->itemDelegate() );
@@ -483,6 +496,13 @@ bool FullTextSearchDialog::eventFilter( QObject * obj, QEvent * ev )
   return QDialog::eventFilter( obj, ev );
 }
 
+void FullTextSearchDialog::helpRequested()
+{
+  MainWindow * mainWindow = qobject_cast< MainWindow * >( parentWidget() );
+  if( mainWindow )
+    mainWindow->showGDHelpForID( "Full-text search" );
+}
+
 /// HeadwordsListModel
 
 int HeadwordsListModel::rowCount( QModelIndex const & ) const
diff --git a/fulltextsearch.hh b/fulltextsearch.hh
index 6f5b27ad5..36ef077f8 100644
--- a/fulltextsearch.hh
+++ b/fulltextsearch.hh
@@ -200,6 +200,7 @@ private:
   QList< FtsHeadword > results;
   HeadwordsListModel * model;
   WordListItemDelegate * delegate;
+  QAction helpAction;
 
   void showDictNumbers();
 
@@ -212,6 +213,7 @@ private slots:
   void reject();
   void itemClicked( QModelIndex const & idx );
   void updateDictionaries();
+  void helpRequested();
 
 signals:
   void showTranslationFor( QString const &, QStringList const & dictIDs,
diff --git a/fulltextsearch.ui b/fulltextsearch.ui
index 0d92d7bb0..b4b97cd96 100644
--- a/fulltextsearch.ui
+++ b/fulltextsearch.ui
@@ -216,6 +216,26 @@
        </property>
       </widget>
      </item>
+     <item>
+      <spacer name="horizontalSpacer">
+       <property name="orientation">
+        <enum>Qt::Horizontal</enum>
+       </property>
+       <property name="sizeHint" stdset="0">
+        <size>
+         <width>40</width>
+         <height>20</height>
+        </size>
+       </property>
+      </spacer>
+     </item>
+     <item>
+      <widget class="QPushButton" name="helpButton">
+       <property name="text">
+        <string>Help</string>
+       </property>
+      </widget>
+     </item>
      <item>
       <spacer name="horizontalSpacer_3">
        <property name="orientation">
diff --git a/help/gdhelp_en.qch b/help/gdhelp_en.qch
index 034da710f..d8c7fb5f1 100644
Binary files a/help/gdhelp_en.qch and b/help/gdhelp_en.qch differ
diff --git a/help/gdhelp_ru.qch b/help/gdhelp_ru.qch
index 528a836b5..823fef161 100644
Binary files a/help/gdhelp_ru.qch and b/help/gdhelp_ru.qch differ
diff --git a/helpwindow.cc b/helpwindow.cc
index 14cfb0846..29c751d0a 100644
--- a/helpwindow.cc
+++ b/helpwindow.cc
@@ -93,11 +93,14 @@ HelpWindow::HelpWindow( QWidget * parent, Config::Class & cfg_ ) :
   if( localeName.isEmpty() )
     localeName = QLocale::system().name();
 
-  helpFile = QDir::toNativeSeparators( Config::getProgramDataDir() + "/help/gdhelp_"
-                                       + localeName.left( 2 ) + ".qch" );
+  QString helpDir = Config::getHelpDir();
+  helpFile = QDir::toNativeSeparators( helpDir + "/gdhelp_" + localeName + ".qch" );
 
   if( !QFileInfo( helpFile ).isFile() )
-    helpFile = QDir::toNativeSeparators( Config::getProgramDataDir() + "/help/gdhelp_en.qch" );
+    helpFile = QDir::toNativeSeparators( helpDir + "/gdhelp_" + localeName.left( 2 ) + ".qch" );
+
+  if( !QFileInfo( helpFile ).isFile() )
+    helpFile = QDir::toNativeSeparators( helpDir + "/gdhelp_en.qch" );
 
   helpCollectionFile = QDir::toNativeSeparators( Config::getConfigDir() + "gdhelp.qhc" );
 
@@ -195,6 +198,11 @@ void HelpWindow::accept()
   emit needClose();
 }
 
+void HelpWindow::showHelpFor( QString const & keyword )
+{
+  helpBrowser->showHelpForKeyword( keyword );
+}
+
 void HelpWindow::forwardEnabled( bool enabled )
 {
   navForward->setEnabled( enabled );
diff --git a/helpwindow.hh b/helpwindow.hh
index fcfb2d2d3..279b82afa 100644
--- a/helpwindow.hh
+++ b/helpwindow.hh
@@ -57,6 +57,8 @@ public:
   QHelpEngine const * getHelpEngine()
   { return helpEngine; }
 
+  void showHelpFor( QString const & keyword );
+
 public slots:
   virtual void reject();
   virtual void accept();
diff --git a/mainwindow.cc b/mainwindow.cc
index d2b08398e..ec0bbee17 100644
--- a/mainwindow.cc
+++ b/mainwindow.cc
@@ -1893,7 +1893,7 @@ void MainWindow::editPreferences()
   ftsIndexing.stopIndexing();
   ftsIndexing.clearDictionaries();
 
-  Preferences preferences( this, cfg.preferences );
+  Preferences preferences( this, cfg );
 
   preferences.show();
 
@@ -4049,17 +4049,25 @@ void MainWindow::closeFullTextSearchDialog()
 void MainWindow::showGDHelp()
 {
   if( !helpWindow )
+  {
     helpWindow = new Help::HelpWindow( this, cfg );
 
-  if( helpWindow->getHelpEngine() )
-  {
-    connect( helpWindow, SIGNAL( needClose() ), this, SLOT( hideGDHelp() ) );
-    helpWindow->show();
+    if( helpWindow->getHelpEngine() )
+    {
+      connect( helpWindow, SIGNAL( needClose() ), this, SLOT( hideGDHelp() ) );
+      helpWindow->showHelpFor( "Content" );
+      helpWindow->show();
+    }
+    else
+    {
+      delete helpWindow;
+      helpWindow = 0;
+    }
   }
   else
   {
-    delete helpWindow;
-    helpWindow = 0;
+    helpWindow->show();
+    helpWindow->activateWindow();
   }
 }
 
@@ -4069,6 +4077,31 @@ void MainWindow::hideGDHelp()
     helpWindow->hide();
 }
 
+void MainWindow::showGDHelpForID( QString const & id )
+{
+  if( !helpWindow )
+    showGDHelp();
+
+  if( helpWindow )
+  {
+    helpWindow->showHelpFor( id );
+    if( !helpWindow->isVisible() )
+    {
+      helpWindow->show();
+      helpWindow->activateWindow();
+    }
+  }
+}
+
+void MainWindow::closeGDHelp()
+{
+  if( helpWindow )
+  {
+    delete helpWindow;
+    helpWindow = 0;
+  }
+}
+
 #ifdef Q_OS_WIN32
 
 bool MainWindow::handleGDMessage( MSG * message, long * result )
diff --git a/mainwindow.hh b/mainwindow.hh
index 1fd337045..c803d471f 100644
--- a/mainwindow.hh
+++ b/mainwindow.hh
@@ -69,6 +69,9 @@ public:
 
   virtual void commitData( QSessionManager & );
 
+  void showGDHelpForID( QString const & id );
+  void closeGDHelp();
+
 public slots:
 
   void messageFromAnotherInstanceReceived( QString const & );
diff --git a/preferences.cc b/preferences.cc
index b98c02166..fea43294a 100644
--- a/preferences.cc
+++ b/preferences.cc
@@ -4,11 +4,16 @@
 #include "langcoder.hh"
 #include <QMessageBox>
 #include "broken_xrecord.hh"
+#include "mainwindow.hh"
 
 
-Preferences::Preferences( QWidget * parent, Config::Preferences const & p ):
+Preferences::Preferences( QWidget * parent, Config::Class & cfg_ ):
   QDialog( parent ), prevInterfaceLanguage( 0 )
+, helpWindow( 0 )
+, cfg( cfg_ )
+, helpAction( this )
 {
+  Config::Preferences const & p = cfg_.preferences;
   ui.setupUi( this );
 
   connect( ui.enableScanPopup, SIGNAL( toggled( bool ) ),
@@ -37,6 +42,17 @@ Preferences::Preferences( QWidget * parent, Config::Preferences const & p ):
   connect( ui.rightShift, SIGNAL( clicked( bool ) ),
            this, SLOT( sideShiftClicked( bool ) ) );
 
+  connect( ui.buttonBox, SIGNAL( helpRequested() ),
+           this, SLOT( helpRequested() ) );
+
+  helpAction.setShortcut( QKeySequence( "F1" ) );
+  helpAction.setShortcutContext( Qt::WidgetWithChildrenShortcut );
+
+  connect( &helpAction, SIGNAL( triggered() ),
+           this, SLOT( helpRequested() ) );
+
+  addAction( &helpAction );
+
   // Load values into form
 
   ui.interfaceLanguage->addItem( tr( "System default" ), QString() );
@@ -491,3 +507,38 @@ void Preferences::customProxyToggled( bool )
   ui.customSettingsGroup->setEnabled( ui.customProxy->isChecked()
                                       && ui.useProxyServer->isChecked() );
 }
+
+void Preferences::helpRequested()
+{
+  if( !helpWindow )
+  {
+    MainWindow * mainWindow = qobject_cast< MainWindow * >( parentWidget() );
+    if( mainWindow )
+      mainWindow->closeGDHelp();
+
+    helpWindow = new Help::HelpWindow( this, cfg );
+
+    if( helpWindow )
+    {
+      helpWindow->setWindowFlags( Qt::Window );
+
+      connect( helpWindow, SIGNAL( needClose() ),
+               this, SLOT( closeHelp() ) );
+      helpWindow->showHelpFor( "Preferences" );
+      helpWindow->show();
+    }
+  }
+  else
+  {
+    if( !helpWindow->isVisible() )
+      helpWindow->show();
+
+    helpWindow->activateWindow();
+  }
+}
+
+void Preferences::closeHelp()
+{
+  if( helpWindow )
+    helpWindow->hide();
+}
diff --git a/preferences.hh b/preferences.hh
index 26d855f14..c922b7676 100644
--- a/preferences.hh
+++ b/preferences.hh
@@ -3,6 +3,7 @@
 
 #include <QDialog>
 #include "config.hh"
+#include "helpwindow.hh"
 #include "ui_preferences.h"
 
 /// Preferences dialog -- allows changing various program options.
@@ -12,9 +13,15 @@ class Preferences: public QDialog
 
   int prevInterfaceLanguage;
 
+  Help::HelpWindow * helpWindow;
+  Config::Class & cfg;
+  QAction helpAction;
+
 public:
 
-  Preferences( QWidget * parent, Config::Preferences const & );
+  Preferences( QWidget * parent, Config::Class & cfg_ );
+  ~Preferences()
+  { if( helpWindow ) delete helpWindow; }
 
   Config::Preferences getPreferences();
 
@@ -43,6 +50,9 @@ private slots:
   void on_useExternalPlayer_toggled( bool enabled );
 
   void customProxyToggled( bool );
+
+  void helpRequested();
+  void closeHelp();
 };
 
 #endif
diff --git a/preferences.ui b/preferences.ui
index efb66b62b..1b1c3a812 100644
--- a/preferences.ui
+++ b/preferences.ui
@@ -1566,7 +1566,7 @@ It is not needed to select this option if you don't use such programs.</string>
       <enum>Qt::Horizontal</enum>
      </property>
      <property name="standardButtons">
-      <set>QDialogButtonBox::Cancel|QDialogButtonBox::Ok</set>
+      <set>QDialogButtonBox::Cancel|QDialogButtonBox::Help|QDialogButtonBox::Ok</set>
      </property>
     </widget>
    </item>