diff --git a/Changes.md b/Changes.md
--- a/Changes.md
+++ b/Changes.md
@@ -1,5 +1,13 @@
 # Change log for the `gnuplot` Haskell binding
 
+## 0.5.7:
+
+ * `Gnuplot.Terminal.QT`
+
+ * `Gnuplot.Execute`:
+   Do longer call `pgnuplot` on Windows.
+   It is gone in gnuplot-5.0 in January 2015.
+
 ## 0.5.5:
 
  * `Gnuplot.Utility.quote` bugfix:
diff --git a/Makefile b/Makefile
--- a/Makefile
+++ b/Makefile
@@ -1,16 +1,16 @@
 ghci:	ghci-tmp
 
 ghci-tmp:
-	ghci -Wall -i:src:dist/build/autogen:os/generic:execute/tmp src/Graphics/Gnuplot/Simple.hs
+	ghci -Wall -i:src:dist/build/autogen:execute/tmp src/Graphics/Gnuplot/Simple.hs
 
 ghci-pipe:
-	ghci -Wall -i:src:dist/build/autogen:os/generic:execute/pipe src/Graphics/Gnuplot/Simple.hs
+	ghci -Wall -i:src:dist/build/autogen:execute/pipe src/Graphics/Gnuplot/Simple.hs
 
 ghci-shell:
-	ghci -Wall -i:src:dist/build/autogen:os/generic:execute/shell src/Graphics/Gnuplot/Simple.hs
+	ghci -Wall -i:src:dist/build/autogen:execute/shell src/Graphics/Gnuplot/Simple.hs
 
 ghci-demo:
-	ghci -Wall -i:src:dist/build/autogen:os/generic:execute/tmp src/Demo.hs
+	ghci -Wall -i:src:dist/build/autogen:execute/tmp src/Demo.hs
 
 testbuild:
 	runhaskell Setup configure --user -f buildExamples
diff --git a/execute/pipe/Graphics/Gnuplot/Execute.hs b/execute/pipe/Graphics/Gnuplot/Execute.hs
--- a/execute/pipe/Graphics/Gnuplot/Execute.hs
+++ b/execute/pipe/Graphics/Gnuplot/Execute.hs
@@ -1,7 +1,5 @@
 module Graphics.Gnuplot.Execute where
 
-import Graphics.Gnuplot.Private.OS (gnuplotName, )
-
 import System.Exit (ExitCode, )
 import System.IO (hPutStr, )
 import qualified System.Process as Proc
@@ -14,6 +12,6 @@
 simple program options =
    do -- putStrLn cmd
       (inp,_out,_err,pid) <-
-         Proc.runInteractiveProcess gnuplotName options Nothing Nothing
+         Proc.runInteractiveProcess "gnuplot" options Nothing Nothing
       hPutStr inp (unlines program)
       Proc.waitForProcess pid
diff --git a/execute/shell/Graphics/Gnuplot/Execute.hs b/execute/shell/Graphics/Gnuplot/Execute.hs
--- a/execute/shell/Graphics/Gnuplot/Execute.hs
+++ b/execute/shell/Graphics/Gnuplot/Execute.hs
@@ -1,6 +1,5 @@
 module Graphics.Gnuplot.Execute where
 
-import Graphics.Gnuplot.Private.OS (gnuplotName, )
 import Graphics.Gnuplot.Utility (semiColonConcat, )
 
 import Shell.Utility.Quote as Quote
@@ -15,7 +14,7 @@
 simple program options =
    let cmd =
           "sh -c 'echo " ++ Quote.minimal (semiColonConcat program) ++
-                 " | " ++ gnuplotName ++ " " ++ unwords options ++ "'"
+                 " | gnuplot " ++ unwords options ++ "'"
    in  do --putStrLn cmd
           system cmd
 
diff --git a/execute/tmp/Graphics/Gnuplot/Execute.hs b/execute/tmp/Graphics/Gnuplot/Execute.hs
--- a/execute/tmp/Graphics/Gnuplot/Execute.hs
+++ b/execute/tmp/Graphics/Gnuplot/Execute.hs
@@ -1,7 +1,5 @@
 module Graphics.Gnuplot.Execute where
 
-import Graphics.Gnuplot.Private.OS (gnuplotName, )
-
 import qualified System.IO as IO
 import System.IO.Temp (withSystemTempFile, )
 import System.Exit (ExitCode, )
@@ -19,9 +17,9 @@
    withSystemTempFile tmpScript $ \path handle -> do
       IO.hPutStr handle (unlines program)
       IO.hClose handle
-      -- putStrLn $ showCommandForUser gnuplotName (options ++ [path])
+      -- putStrLn $ showCommandForUser "gnuplot" (options ++ [path])
       (exitCode, _out, _err) <-
-         readProcessWithExitCode gnuplotName (options ++ [path]) []
+         readProcessWithExitCode "gnuplot" (options ++ [path]) []
       -- putStr out
       -- putStr err
       return exitCode
diff --git a/gnuplot.cabal b/gnuplot.cabal
--- a/gnuplot.cabal
+++ b/gnuplot.cabal
@@ -1,6 +1,7 @@
+Cabal-Version:    2.2
 Name:             gnuplot
-Version:          0.5.6.1
-License:          BSD3
+Version:          0.5.7
+License:          BSD-3-Clause
 License-File:     LICENSE
 Author:           Henning Thielemann <haskell@henning-thielemann.de>
 Maintainer:       Henning Thielemann <haskell@henning-thielemann.de>
@@ -12,8 +13,9 @@
    This is a wrapper to gnuplot
    which lets you create 2D and 3D plots.
    .
-   Start a simple session with @make ghci@.
-   This loads the module "Graphics.Gnuplot.Simple"
+   Start a simple session with @cabal repl@.
+   If not already loaded, call @:module Graphics.Gnuplot.Simple@
+   in order to load "Graphics.Gnuplot.Simple"
    which is ready for use in GHCi.
    It does not address all fancy gnuplot features
    in order to stay simple.
@@ -36,22 +38,16 @@
    .
    Alternative packages: @plot@, @HPlot@, @Chart@, @textPlot@, @easyplot@
 Tested-With:       GHC==7.4.2, GHC==7.6.3, GHC==7.8.4, GHC==7.10.3
-Tested-With:       GHC==8.2.1
-Cabal-Version:     >=1.8
+Tested-With:       GHC==8.2.1, GHC==8.6.5
 Build-Type:        Simple
 Extra-Source-Files:
   Makefile
   Changes.md
-  execute/tmp/Graphics/Gnuplot/Execute.hs
-  execute/pipe/Graphics/Gnuplot/Execute.hs
-  execute/shell/Graphics/Gnuplot/Execute.hs
-  os/windows/Graphics/Gnuplot/Private/OS.hs
-  os/generic/Graphics/Gnuplot/Private/OS.hs
 Data-Files:
   data/runtime.data
 
 Source-Repository this
-  Tag:         0.5.6.1
+  Tag:         0.5.7
   Type:        darcs
   Location:    http://code.haskell.org/gnuplot/
 
@@ -80,13 +76,14 @@
     utility-ht >=0.0.12 && <0.1,
     data-accessor-transformers >=0.2.1 && <0.3,
     data-accessor >=0.2.2 && <0.3,
-    transformers >=0.3 && <0.6,
+    transformers >=0.3 && <0.7,
     semigroups >=0.1 && <1.0,
     deepseq >=1.0 && <1.5,
     process >=1.0 && <1.7,
-    time >=1.5 && <1.10,
+    time >=1.5 && <1.14,
     base >=2 && <5
 
+  Default-Language: Haskell98
   GHC-Options: -Wall
 
   Hs-Source-Dirs: src
@@ -95,13 +92,9 @@
   Else
     If flag(executeShell)
       Hs-Source-Dirs: execute/shell
-      Build-Depends: shell-utility >=0.0 && <0.1
+      Build-Depends: shell-utility >=0.0 && <0.2
     Else
       Hs-Source-Dirs: execute/tmp
-  If os(windows)
-    Hs-Source-Dirs: os/windows
-  Else
-    Hs-Source-Dirs: os/generic
 
   Exposed-Modules:
     Graphics.Gnuplot.Simple
@@ -115,6 +108,7 @@
     Graphics.Gnuplot.Terminal.PNG
     Graphics.Gnuplot.Terminal.SVG
     Graphics.Gnuplot.Terminal.WXT
+    Graphics.Gnuplot.Terminal.QT
     Graphics.Gnuplot.Terminal.X11
     Graphics.Gnuplot.Encoding
     Graphics.Gnuplot.Frame
@@ -152,7 +146,6 @@
     Graphics.Gnuplot.Private.Display
     Graphics.Gnuplot.Private.File
     Graphics.Gnuplot.Private.Command
-    Graphics.Gnuplot.Private.OS
     Graphics.Gnuplot.Utility
     Graphics.Gnuplot.Execute
 
@@ -167,6 +160,8 @@
       base
   Else
     Buildable: False
+  Default-Language: Haskell98
   GHC-Options: -Wall
   Main-Is: src/Demo.hs
   Other-Modules: Paths_gnuplot
+  Autogen-Modules: Paths_gnuplot
diff --git a/os/generic/Graphics/Gnuplot/Private/OS.hs b/os/generic/Graphics/Gnuplot/Private/OS.hs
deleted file mode 100644
--- a/os/generic/Graphics/Gnuplot/Private/OS.hs
+++ /dev/null
@@ -1,4 +0,0 @@
-module Graphics.Gnuplot.Private.OS where
-
-gnuplotName :: String
-gnuplotName = "gnuplot"
diff --git a/os/windows/Graphics/Gnuplot/Private/OS.hs b/os/windows/Graphics/Gnuplot/Private/OS.hs
deleted file mode 100644
--- a/os/windows/Graphics/Gnuplot/Private/OS.hs
+++ /dev/null
@@ -1,4 +0,0 @@
-module Graphics.Gnuplot.Private.OS where
-
-gnuplotName :: String
-gnuplotName = "pgnuplot"
diff --git a/src/Demo.hs b/src/Demo.hs
--- a/src/Demo.hs
+++ b/src/Demo.hs
@@ -19,6 +19,7 @@
 import Graphics.Gnuplot.Plot.TwoDimensional (linearScale, )
 
 import qualified Graphics.Gnuplot.LineSpecification as LineSpec
+import Graphics.Gnuplot.Value.Tuple (Label(Label))
 
 import qualified Data.Time as Time
 
@@ -47,6 +48,12 @@
 list2d =
    Plot2D.list Graph2D.listPoints [0,1,1,2,3,5,8,13]
 
+labels2d :: Plot2D.T Double Double
+labels2d =
+   Plot2D.list Graph2D.labels $
+   flip map [1..12] $
+   \t -> (let w = fromInteger t*2*pi/12 in (sin w, cos w), Label $ show t)
+
 candle2d :: Plot2D.T Time.Day Double
 candle2d =
    Plot2D.list Graph2D.candleSticks $
@@ -201,6 +208,7 @@
 main = sequence_ $
    GP.plotDefault simple2d :
    GP.plotDefault list2d :
+   GP.plotDefault labels2d :
    GP.plotDefault candle2d :
    GP.plotDefault image2d :
    GP.plotDefault histogram2d :
diff --git a/src/Graphics/Gnuplot/Graph/TwoDimensional.hs b/src/Graphics/Gnuplot/Graph/TwoDimensional.hs
--- a/src/Graphics/Gnuplot/Graph/TwoDimensional.hs
+++ b/src/Graphics/Gnuplot/Graph/TwoDimensional.hs
@@ -51,6 +51,8 @@
    filledStripe,
    filledStripeAbove,
    filledStripeBelow,
+
+   labels,
    ) where
 
 import Graphics.Gnuplot.Private.Graph2D
diff --git a/src/Graphics/Gnuplot/Private/Graph2DType.hs b/src/Graphics/Gnuplot/Private/Graph2DType.hs
--- a/src/Graphics/Gnuplot/Private/Graph2DType.hs
+++ b/src/Graphics/Gnuplot/Private/Graph2DType.hs
@@ -2,6 +2,7 @@
 
 import qualified Graphics.Gnuplot.Value.Atom as Atom
 import qualified Graphics.Gnuplot.Value.Tuple as Tuple
+import Graphics.Gnuplot.Value.Tuple (Label)
 import Prelude hiding (lines, )
 
 
@@ -68,7 +69,9 @@
 filledStripeAbove :: (Atom.C x, Atom.C y) => T x y (x,(y,y))
 filledStripeBelow :: (Atom.C x, Atom.C y) => T x y (x,(y,y))
 
+labels          :: (Atom.C x, Atom.C y) => T x y ((x,y),Label)
 
+
 listLines       = Cons "lines"
 listPoints      = Cons "points"
 listLinesPoints = Cons "linespoints"
@@ -114,6 +117,8 @@
 filledStripe      = Cons "filledcurves"
 filledStripeAbove = Cons "filledcurves above"
 filledStripeBelow = Cons "filledcurves below"
+
+labels       = Cons "labels"
 
 
 toString :: T x y a -> String
diff --git a/src/Graphics/Gnuplot/Terminal/QT.hs b/src/Graphics/Gnuplot/Terminal/QT.hs
new file mode 100644
--- /dev/null
+++ b/src/Graphics/Gnuplot/Terminal/QT.hs
@@ -0,0 +1,53 @@
+{- |
+Terminal using QT.
+Derived from wxt.
+-}
+module Graphics.Gnuplot.Terminal.QT (
+   T, cons,
+   title, noTitle,
+   persist, noPersist,
+   ) where
+
+import qualified Graphics.Gnuplot.Private.Terminal as Terminal
+import Data.Maybe (catMaybes, )
+import Graphics.Gnuplot.Utility (quote, formatBool, )
+
+
+data T =
+   Cons {
+      title_ :: Maybe String,
+      persist_ :: Maybe Bool
+   }
+
+cons :: T
+cons =
+   Cons {
+      title_ = Nothing,
+      persist_ = Nothing
+   }
+
+
+title :: String -> T -> T
+title text term = term{title_ = Just text}
+
+noTitle :: T -> T
+noTitle term = term{title_ = Nothing}
+
+persist, noPersist :: T -> T
+persist   term = term{persist_ = Just True}
+noPersist term = term{persist_ = Just False}
+
+
+instance Terminal.C T where
+   canonical term =
+      Terminal.Cons {
+         Terminal.precommands = [],
+         Terminal.options =
+            "qt" :
+            catMaybes (
+               (fmap quote $ title_ term) :
+               (fmap (formatBool "persist") $ persist_ term) :
+               []),
+         Terminal.commands = [],
+         Terminal.interactive = True
+      }
diff --git a/src/Graphics/Gnuplot/Value/Tuple.hs b/src/Graphics/Gnuplot/Value/Tuple.hs
--- a/src/Graphics/Gnuplot/Value/Tuple.hs
+++ b/src/Graphics/Gnuplot/Value/Tuple.hs
@@ -7,8 +7,11 @@
 module Graphics.Gnuplot.Value.Tuple (
    C(text, columnCount),
    ColumnCount(ColumnCount),
+   Label(Label),
    ) where
 
+import Graphics.Gnuplot.Utility (quote)
+
 import Data.Time.Format (defaultTimeLocale, )
 import qualified Data.Time as Time
 
@@ -18,7 +21,9 @@
 
 import Data.Function (id, ($), (.), )
 import Text.Show (Show, ShowS, shows, showString, )
-import Prelude (Eq, Ord, Int, Integer, Integral, Float, Double, realToFrac, (+), (++), )
+import Prelude
+         (Eq, Ord, String, Int, Integer, Integral, Float, Double,
+          realToFrac, (+), (++), )
 
 
 class C a where
@@ -83,6 +88,9 @@
    text d = text $ Time.UTCTime d 0
 instance C Time.UTCTime where
    text = singleton . showString . Time.formatTime defaultTimeLocale "%s"
+
+newtype Label = Label String
+instance C Label where text (Label str) = singleton $ showString $ quote str
 
 
 instance (C a, C b) => C (a,b) where