diff --git a/SConstruct b/SConstruct
index f3ffbb90..9f154411 100644
--- a/SConstruct
+++ b/SConstruct
@@ -16,7 +16,7 @@ config.read( [
     'scons.cfg',
 ] )
 
-icommonInclude = []
+commonInclude = []
 commonLibDir   = []
 installPrefix  = "/usr/local"
 
@@ -44,20 +44,23 @@ if not config.has_section( 'PYTHON' ):
 
 
 javaInclude  = config.get( 'JAVA', 'inc' ).split( splitChar )
+
 pyInclude    = config.get( 'PYTHON', 'inc' ).split( splitChar )
+pyLibrary    = []
+if config.has_option( 'PYTHON', 'libdir' ):
+    pyLibrary = config.get( 'PYTHON', 'libdir' ).split( splitChar )
+
 libavInclude = config.get( 'LIBAV', 'inc' ).split( splitChar )
 libavLibDir  = config.get( 'LIBAV', 'libdir' ).split( splitChar )
 
-env     = Environment().Clone()
-envJava = Environment().Clone()
-envPy   = Environment().Clone()
+env = Environment( ENV = { 'PATH' : os.environ[ 'PATH' ] } )
 
 # C++ environment
 env.Append(
     CPPPATH = [
         libavInclude,
         "#src",
-    ],
+    ] + commonInclude,
     CXXFLAGS = [
         '-Wall',
         '-fPIC',
@@ -66,88 +69,108 @@ env.Append(
         libavLibDir,
         "#src",
         "#build/src"
-    ],
+    ] + commonLibDir,
 )
 
+if os.name == "nt" and sys.platform.startswith("win"): # detect windows plateform
+    env.AppendUnique( CPPDEFINES = 'WIN' )
+    env.AppendUnique( CPPDEFINES = 'WIN32' )
+    env.AppendUnique( CPPDEFINES = 'WINDOWS' )
+    env.AppendUnique( CPPDEFINES = '_WINDOWS' )
+    env.AppendUnique( CPPDEFINES = '__WINDOWS__' )
+    env.AppendUnique( CPPDEFINES = '__STDC_CONSTANT_MACROS' )
+    bits = 64
+    if 'PROGRAMFILES(X86)' not in os.environ:
+        bits = 32
+    env.AppendUnique( CPPDEFINES = 'WIN'+str(bits) )
+    env.AppendUnique( TMP = os.environ['TMP'].split( splitChar ) )
+
+    if 'LIB' not in os.environ or 'LIBPATH' not in os.environ :
+        print "Compiler environment not set."
+        sys.exit( -1 )
+    env.AppendUnique( LIB = os.environ['LIB'].split( splitChar ) )
+    env.AppendUnique( LIBPATH = os.environ['LIBPATH'].split( splitChar ) )
+    env.AppendUnique( TMP = os.environ['TMP'].split( splitChar ) )
+else:
+    env.AppendUnique( CPPDEFINES = 'UNIX' )
+    env.AppendUnique( CPPDEFINES = '__UNIX__' )
+    if sys.platform.startswith( "darwin" ): # for disabling macros such as check, verify, require ... ( AssertMacros.h )
+        env.AppendUnique( CPPDEFINES = '__ASSERT_MACROS_DEFINE_VERSIONS_WITHOUT_UNDERSCORES=0' )
+
+envJava = env.Clone()
+envPy   = env.Clone()
+
 # Java environment
 envJava.Replace(
-    CPPPATH = [
-        javaInclude,
-        libavInclude,
-        ".",
-    ],
     SWIGCXXFILESUFFIX= '_wrapJava$CXXFILESUFFIX',
-    CXXFLAGS = [
-        '-Wall',
-    ],
     SWIGFLAGS = [
         '-java',
         '-c++',
         '-fcompact',
     ],
-    LINKFLAGS = [
-    ],
-    LIBPATH = [
-        libavLibDir,
-        "#src",
-    ],
-    JARCHDIR = env.Dir('#build/'+mymode+'/src/AvTranscoder').get_abspath(),
 )
-
-envJava.Append(
+envJava.AppendUnique(
+    CPPPATH = javaInclude,
     SWIGPATH = envJava['CPPPATH'],
     SWIGFLAGS = [ '-package', 'org.AvTranscoder' ],
-    )
+    JARCHDIR = env.Dir('#build/'+mymode+'/src/AvTranscoder').get_abspath(),
+)
 
 # Python environment
 envPy.Replace(
-    CPPPATH = [
-        pyInclude,
-        libavInclude,
-        ".",
-    ],
     SWIGCXXFILESUFFIX= '_wrapPython$CXXFILESUFFIX',
     SHLIBPREFIX= '_',
-    CXXFLAGS = [
-        '-Wall',
-    ],
     SWIGFLAGS = [
         '-python',
         '-c++',
         '-fcompact',
     ],
-    LINKFLAGS = [
-    ],
-    LIBPATH = [
-        libavLibDir,
-        "#src",
-    ],
 )
-
-envPy.Append( SWIGPATH = envPy['CPPPATH'] )
+envPy.AppendUnique(
+    CPPPATH = pyInclude,
+    LIBPATH = pyLibrary,
+    SWIGPATH = envPy['CPPPATH']
+)
 
 conf = Configure( env )
 
 resampleLibraryFlag = '-DAV_RESAMPLE_LIBRARY'
 resampleLibraryName = 'avresample'
 
-if not conf.CheckLibWithHeader('avutil', 'libavutil/avutil.h', 'c'):
-    sys.exit( 0 )
+if os.name == "nt" and sys.platform.startswith("win"): # detect windows plateform
+    if not conf.CheckLibWithHeader('avutil', 'libavutil/avutil.h', 'c++'):
+        sys.exit( -1 )
+
+    if not conf.CheckLibWithHeader('avcodec', 'libavcodec/avcodec.h', 'c++'):
+        sys.exit( -1 )
+
+    if not conf.CheckLibWithHeader('avformat', 'libavformat/avformat.h', 'c++'):
+        sys.exit( -1 )
+
+    if not conf.CheckLibWithHeader('swscale', 'libswscale/swscale.h', 'c++'):
+        sys.exit( -1 )
 
-if not conf.CheckLibWithHeader('avresample', 'libavresample/avresample.h', 'c'):
-    if conf.CheckLibWithHeader('swresample', 'libswresample/swresample.h', 'c'):
-        resampleLibraryFlag = '-DFF_RESAMPLE_LIBRARY'
-        resampleLibraryName = 'swresample'
+    if not conf.CheckLibWithHeader('avresample', 'libavresample/avresample.h', 'c++'):
+        if conf.CheckLibWithHeader('swresample', 'libswresample/swresample.h', 'c++'):
+            resampleLibraryFlag = '-DFF_RESAMPLE_LIBRARY'
+            resampleLibraryName = 'swresample'
+else:
+    if not conf.CheckCHeader('libavutil/avutil.h'):
+        sys.exit( -1 )
 
-if not conf.CheckLibWithHeader('avcodec', 'libavcodec/avcodec.h', 'c'):
-    sys.exit( 0 )
+    if not conf.CheckCHeader('libavcodec/avcodec.h'):
+        sys.exit( -1 )
 
-if not conf.CheckLibWithHeader('avformat', 'libavformat/avformat.h', 'c'):
-    sys.exit( 0 )
+    if not conf.CheckCHeader('libavformat/avformat.h'):
+        sys.exit( -1 )
 
-if not conf.CheckLibWithHeader('swscale', 'libswscale/swscale.h', 'c'):
-    sys.exit( 0 )
+    if not conf.CheckCHeader('libswscale/swscale.h'):
+        sys.exit( -1 )
 
+    if not conf.CheckCHeader('libavresample/avresample.h'):
+        if conf.CheckCHeader('libswresample/swresample.h'):
+            resampleLibraryFlag = '-DFF_RESAMPLE_LIBRARY'
+            resampleLibraryName = 'swresample'
 
 env.Append(
     CXXFLAGS = resampleLibraryFlag
diff --git a/tools/scons.windows7.cfg b/tools/scons.windows7.cfg
new file mode 100644
index 00000000..fe203c22
--- /dev/null
+++ b/tools/scons.windows7.cfg
@@ -0,0 +1,14 @@
+[COMMON]
+inc=C:\Program Files (x86)\Microsoft Visual Studio 10.0\VC\include;C:\msinttypes;C:\Program Files (x86)\Microsoft SDKs\Windows\v7.0A\Include
+libdir=C:\Program Files (x86)\Microsoft SDKs\Windows\v7.0A\Lib
+
+[LIBAV]
+inc=C:\local_build\build-ffmpeg-2.3\include
+libdir=C:\local_build\build-ffmpeg-2.3\bin;C:\local_build\build-ffmpeg-2.3\lib
+
+[PYTHON]
+inc=C:\Python27\include
+libdir=C:\Python27\libs
+
+[JAVA]
+inc=C:\Program Files (x86)\Java\jdk1.7.0_51\include;C:\Program Files (x86)\Java\jdk1.7.0_51\include\win32