diff --git a/README.md b/README.md
index 2c28eb6..85a17c4 100644
--- a/README.md
+++ b/README.md
@@ -45,7 +45,7 @@ If you are using Ubuntu, installing these may be as simple as running
 In case you also want to be able to compile Windows binaries from Linux,
 you also need:
 
-  * `mingw32`
+  * `i686-w64-mingw32`
 
 Note that welcome all contributions, e.g., further protocol models. Just send
 us a pull request.
diff --git a/gui/Scyther/Scyther.py b/gui/Scyther/Scyther.py
index a5336c6..1232f23 100755
--- a/gui/Scyther/Scyther.py
+++ b/gui/Scyther/Scyther.py
@@ -89,6 +89,9 @@ def getCacheDir():
     # If not none, append special name
     if tmpdir != None:
         tmpdir = os.path.join(tmpdir,"Scyther-cache")
+    
+    # Normalize the tmpdir path.
+    tmpdir = os.path.normpath(tmpdir)
 
     return tmpdir
 
@@ -398,8 +401,14 @@ class Scyther(object):
         # Generate temporary files for the output.
         (fde,fne) = tempfile.mkstemp()  # errors
         (fdo,fno) = tempfile.mkstemp()  # output
+        
+        # Normalize the temporary paths.
+        fne = os.path.normpath(fne)
+        fno = os.path.normpath(fno)
+        
         if spdl:
             (fdi,fni) = tempfile.mkstemp()  # input
+            fni = os.path.normpath(fni)
 
             # Write (input) file
             fhi = os.fdopen(fdi,'w+')
@@ -409,14 +418,14 @@ class Scyther(object):
         # Generate command line for the Scyther process
         self.cmd = ""
         self.cmd += "\"%s\"" % self.program
-        self.cmd += " --append-errors=%s" % fne
-        self.cmd += " --append-output=%s" % fno
+        self.cmd += " --append-errors=\"%s\"" % fne
+        self.cmd += " --append-output=\"%s\"" % fno
         self.cmd += " %s" % args
         if spdl:
-            self.cmd += " %s" % fni
+            self.cmd += " \"%s\"" % fni
 
         # Only for debugging, really
-        ##print self.cmd
+        # print( self.cmd )
 
         # Start the process
         safeCommand(self.cmd, storePopen=storePopen)
diff --git a/src/Build-Win32.cmake b/src/Build-Win32.cmake
new file mode 100644
index 0000000..285893a
--- /dev/null
+++ b/src/Build-Win32.cmake
@@ -0,0 +1,22 @@
+################################################################
+# Name:		BuildUnix-Win32.cmake
+# Purpose:	Build Win32 binary on Unix
+# Author:	Cas Cremers
+################################################################
+
+message (STATUS "Building W32 version")
+
+# This should work on win32 platform, but also when the compiler
+# is available anyway under linux
+set (CMAKE_C_COMPILER "i686-w64-mingw32-gcc")
+set (CMAKE_CXX_COMPILER "i686-w64-mingw32-g++")
+set (CMAKE_SHARED_LIBRARY_LINK_C_FLAGS)	# to get rid of -rdynamic
+# Signal for windows
+set (CMAKE_C_FLAGS "-DFORWINDOWS")
+
+# Static where possible (i.e. only not on the APPLE)
+set (CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -static -m32")
+
+set (scythername "scyther-w32.exe")
+add_executable (${scythername} ${Scyther_sources})
+
diff --git a/src/BuildUnix-Win32.cmake b/src/BuildUnix-Win32.cmake
index c57f115..285893a 100644
--- a/src/BuildUnix-Win32.cmake
+++ b/src/BuildUnix-Win32.cmake
@@ -8,8 +8,8 @@ message (STATUS "Building W32 version")
 
 # This should work on win32 platform, but also when the compiler
 # is available anyway under linux
-set (CMAKE_C_COMPILER "i586-mingw32msvc-gcc")
-set (CMAKE_CXX_COMPILER "i586-mingw32msvc-g++")
+set (CMAKE_C_COMPILER "i686-w64-mingw32-gcc")
+set (CMAKE_CXX_COMPILER "i686-w64-mingw32-g++")
 set (CMAKE_SHARED_LIBRARY_LINK_C_FLAGS)	# to get rid of -rdynamic
 # Signal for windows
 set (CMAKE_C_FLAGS "-DFORWINDOWS")