diff --git a/Setup.hs b/Setup.hs
--- a/Setup.hs
+++ b/Setup.hs
@@ -44,11 +44,8 @@
   createDirectoryIfMissing True (outdir </> "bin")
   writeFile (outdir </> ".hastedir") ""
 
-  -- Copy settings and tools, except on Windows where we need a working
-  -- Haskell Platform anyway.
-#ifndef mingw32_HOST_OS
+  -- Copy settings and tools.
   copyGhcSettings outdir
-#endif
 
   -- Copy executables
   forM_ exes $ \exe -> do
@@ -73,9 +70,15 @@
 -- | Copy GHC settings and utils into the given directory.
 copyGhcSettings :: FilePath -> IO ()
 copyGhcSettings dest = do
-  copyFile (libdir </> "settings") (dest </> "settings")
   copyFile (libdir </> "platformConstants") (dest </> "platformConstants")
+#ifdef mingw32_HOST_OS
+  copyFile ("settings.windows") (dest </> "settings")
+  copyFile (libdir </> "unlit.exe") (dest </> "unlit.exe")
+  copyFile (libdir </> "touchy.exe") (dest </> "touchy.exe")
+#else
+  copyFile (libdir </> "settings") (dest </> "settings")
   copyFile (libdir </> "unlit") (dest </> "unlit")
+#endif
 
 main = defaultMainWithHooks $ simpleUserHooks {
     postBuild = \_ _ pkgdesc buildinfo -> do
diff --git a/haste-compiler.cabal b/haste-compiler.cabal
--- a/haste-compiler.cabal
+++ b/haste-compiler.cabal
@@ -1,5 +1,5 @@
 Name:           haste-compiler
-Version:        0.5.0
+Version:        0.5.0.1
 License:        BSD3
 License-File:   LICENSE
 Synopsis:       Haskell To ECMAScript compiler
@@ -8,7 +8,7 @@
                 use of standard Haskell libraries, integrates with Cabal,
                 supports most GHC extensions and works on Windows, Linux and
                 OSX.
-Category:       Javascript, Compiler, Web
+Category:       JavaScript, Compiler, Web
 Cabal-Version:  >= 1.10
 Build-Type:     Custom
 Author:         Anton Ekblad <anton@ekblad.cc>
diff --git a/libraries/haste-lib/src/Haste/Any.hs b/libraries/haste-lib/src/Haste/Any.hs
--- a/libraries/haste-lib/src/Haste/Any.hs
+++ b/libraries/haste-lib/src/Haste/Any.hs
@@ -226,7 +226,7 @@
 instance FromAny Float where
   fromAny x = return (unsafeCoerce (jsNumber x))
 instance FromAny Double where
-  fromAny x = return (unsafeCoerce x) -- return (jsNumber x)
+  fromAny x = return (jsNumber x)
 instance FromAny Char where
   fromAny x = return (unsafeCoerce (jsNumber x))
   listFromAny x = fromJSStr <$> fromAny x
diff --git a/src/Haste/Environment.hs b/src/Haste/Environment.hs
--- a/src/Haste/Environment.hs
+++ b/src/Haste/Environment.hs
@@ -22,20 +22,9 @@
 import System.Environment (getExecutablePath)
 #endif
 
--- | Directory to search for GHC settings. Always equal to 'hasteSysDir'
---   except on Windows where we rely on a working Haskell Platform for GCC and
---   other needed tools.
+-- | Directory to search for GHC settings. Always equal to 'hasteSysDir'.
 hasteGhcLibDir :: FilePath
-#ifdef mingw32_HOST_OS
-hasteGhcLibDir = unsafePerformIO $ do
-  eout <- shell $ run ghcBinary ["--print-libdir"] ""
-  case eout of
-    Right out -> return $ init out
-    _         -> error $ "This Haste build requires a working " ++
-                         "Haskell Platform install!"
-#else
 hasteGhcLibDir = hasteSysDir
-#endif
 
 #if defined(PORTABLE)
 -- | Was Haste built in portable mode or not?
diff --git a/src/Haste/Version.hs b/src/Haste/Version.hs
--- a/src/Haste/Version.hs
+++ b/src/Haste/Version.hs
@@ -12,7 +12,7 @@
 
 -- | Current Haste version.
 hasteVersion :: Version
-hasteVersion = Version [0, 5, 0] []
+hasteVersion = Version [0, 5, 0, 1] []
 
 -- | Current Haste version as an Int. The format of this version number is
 --   MAJOR*10 000 + MINOR*100 + MICRO.