diff --git a/polymer/eduke32/Makefile.msvc b/polymer/eduke32/Makefile.msvc
index 1f23d7c9a..6e9f72043 100644
--- a/polymer/eduke32/Makefile.msvc
+++ b/polymer/eduke32/Makefile.msvc
@@ -31,7 +31,6 @@ EDITORLIB=build.lib
 # the WDK allows us to link against msvcrt.dll instead of msvcrxxx.dll
 # this path should match build\Makefile.msvc
 # WDKROOT="H:\WinDDK\7600.16385.1"
-DXROOT="C:\SDKs\Microsoft DirectX SDK (February 2010)"
 VORBISSDK="C:\SDKs\oggvorbis-win32sdk-1.0.1"
 
 !ifdef DEBUG
@@ -57,10 +56,10 @@ MT=mt
 CFLAGS= /MT /J /nologo $(flags_cl)  \
 	/I$(INC) /I$(EINC)\msvc /I$(EINC)\ /I$(SRC)\jmact /I$(JAUDIOLIBDIR)\include /I$(ENETDIR)\include \
  	/W2 $(ENGINEOPTS) \
- 	/I$(DXROOT)\include /I$(VORBISSDK)\include /DRENDERTYPEWIN=1
+ 	/I$(VORBISSDK)\include /DRENDERTYPEWIN=1
  	
-LIBS=user32.lib gdi32.lib shell32.lib winmm.lib ws2_32.lib dxguid.lib comctl32.lib \
-     vorbisfile_static.lib vorbis_static.lib ogg_static.lib dsound.lib advapi32.lib   
+LIBS=user32.lib gdi32.lib shell32.lib winmm.lib ws2_32.lib comctl32.lib \
+     vorbisfile_static.lib vorbis_static.lib ogg_static.lib dsound.lib advapi32.lib
 
 LIBS=/NODEFAULTLIB:glu32.lib /NODEFAULTLIB:msvcrt.lib /NODEFAULTLIB:msvcrtd.lib /NODEFAULTLIB:libcmt.lib \
     /NODEFAULTLIB:libcmtd.lib $(LIBS)
@@ -161,11 +160,11 @@ EDITOROBJS=$(OBJ)\astub.$o \
 all: eduke32$(EXESUFFIX) mapster32$(EXESUFFIX) 
 
 eduke32$(EXESUFFIX): $(GAMEOBJS) $(EOBJ)\$(ENGINELIB) $(JAUDIOLIBDIR)\$(JAUDIOLIB) $(ENETDIR)\$(ENETLIB)
-	$(LINK) /OUT:$@ /SUBSYSTEM:WINDOWS /LIBPATH:$(DXROOT)\lib$(DXLIB) /LIBPATH:$(VORBISSDK)\lib $(flags_link) /MAP $** $(LIBS)
+	$(LINK) /OUT:$@ /SUBSYSTEM:WINDOWS /LIBPATH:$(VORBISSDK)\lib $(flags_link) /MAP $** $(LIBS)
 	$(MT) -manifest $(RSRC)$(WINLIB)\manifest.game.xml -hashupdate -outputresource:$@ -out:$@.manifest
 	
 mapster32$(EXESUFFIX): $(EDITOROBJS) $(EOBJ)\$(ENGINELIB) $(EOBJ)\$(EDITORLIB) $(JAUDIOLIBDIR)\$(JAUDIOLIB)
-	$(LINK) /OUT:$@ /SUBSYSTEM:WINDOWS /LIBPATH:$(DXROOT)\lib$(DXLIB) /LIBPATH:$(VORBISSDK)\lib $(flags_link) /MAP $** $(LIBS)
+	$(LINK) /OUT:$@ /SUBSYSTEM:WINDOWS /LIBPATH:$(VORBISSDK)\lib $(flags_link) /MAP $** $(LIBS)
 	$(MT) -manifest $(RSRC)$(WINLIB)\manifest.build.xml -hashupdate -outputresource:$@ -out:$@.manifest
 	
 !include Makefile.deps
diff --git a/polymer/eduke32/build/src/winlayer.c b/polymer/eduke32/build/src/winlayer.c
index 526f628f0..e1f8fe727 100644
--- a/polymer/eduke32/build/src/winlayer.c
+++ b/polymer/eduke32/build/src/winlayer.c
@@ -28,6 +28,10 @@
 # define bREFIID                  &
 #endif
 
+#ifdef _MSC_VER
+#include <InitGuid.h>
+#endif
+
 #include <windows.h>
 #include <ddraw.h>
 #include <dinput.h>
diff --git a/polymer/eduke32/source/jaudiolib/Makefile.msvc b/polymer/eduke32/source/jaudiolib/Makefile.msvc
index 530d749d7..66f67f453 100644
--- a/polymer/eduke32/source/jaudiolib/Makefile.msvc
+++ b/polymer/eduke32/source/jaudiolib/Makefile.msvc
@@ -18,15 +18,14 @@ flags_lib=/LTCG
 CC=cl
 LINK=link /opt:ref /nologo
 
-DXROOT=C:\SDKs\Microsoft DirectX SDK (April 2010)
 VORBISSDK=C:\SDKs\oggvorbis-win32sdk-1.0.1
 
-CFLAGS=$(CFLAGS) /nologo /MT /J $(flags_cl) $(TARGETOPTS) /I$(INC) /I$(SRC) /I"$(VORBISSDK)\include" /I"$(DXROOT)\include"
+CFLAGS=$(CFLAGS) /nologo /MT /J $(flags_cl) $(TARGETOPTS) /I$(INC) /I$(SRC) /I"$(VORBISSDK)\include" 
 !ifdef DEBUG
 CFLAGS=$(CFLAGS) /DDEBUGGINGAIDS
 !endif
 
-CFLAGS=$(CFLAGS) /DRENDERTYPE$(RENDERTYPE)=1 /D "_CRT_SECURE_NO_DEPRECATE" /W2 /DHAVE_VORBIS /Iinclude/msvc /DWIN32
+CFLAGS=$(CFLAGS) /DRENDERTYPE$(RENDERTYPE)=1 /D "_CRT_SECURE_NO_DEPRECATE" /W2 /DHAVE_VORBIS /Iinclude/msvc /DWIN32 /DHAVE_DS
 
 OBJECTS=$(OBJ)\drivers.o \
 	$(OBJ)\fx_man.o \
@@ -43,7 +42,7 @@ OBJECTS=$(OBJ)\drivers.o \
 
 jfaudiolib: $(JFAUDIOLIB)
 $(JFAUDIOLIB): $(OBJECTS)
-	lib $(flags_lib) /out:$@ /nologo $**
+	lib $(flags_lib) /out:$@ /nologo $** 
 
 clean:
 	-del /Q $(OBJ)\* $(JFAUDIOLIB)
diff --git a/polymer/eduke32/source/jaudiolib/src/driver_directsound.c b/polymer/eduke32/source/jaudiolib/src/driver_directsound.c
index 95767fdbc..979ddbc32 100644
--- a/polymer/eduke32/source/jaudiolib/src/driver_directsound.c
+++ b/polymer/eduke32/source/jaudiolib/src/driver_directsound.c
@@ -25,6 +25,11 @@
 #define WIN32_LEAN_AND_MEAN
 #define DIRECTSOUND_VERSION  0x0700
 #define CINTERFACE
+
+#ifdef _MSC_VER
+#include <InitGuid.h>
+#endif
+
 #include <windows.h>
 #include <mmsystem.h>
 #include <dsound.h>
@@ -58,19 +63,19 @@ static int32_t ErrorCode = DSErr_Ok;
 static int32_t Initialised = 0;
 static int32_t Playing = 0;
 
-static char *MixBuffer = 0;
+static char *MixBuffer = NULL;
 static int32_t MixBufferSize = 0;
 static int32_t MixBufferCount = 0;
 static int32_t MixBufferCurrent = 0;
 static int32_t MixBufferUsed = 0;
-static void ( *MixCallBack )( void ) = 0;
+static void ( *MixCallBack )( void ) = NULL;
 
-static LPDIRECTSOUND lpds = 0;
-static LPDIRECTSOUNDBUFFER lpdsbprimary = 0, lpdsbsec = 0;
-static LPDIRECTSOUNDNOTIFY lpdsnotify = 0;
+static LPDIRECTSOUND lpds = NULL;
+static LPDIRECTSOUNDBUFFER lpdsbprimary = NULL, lpdsbsec = NULL;
+static LPDIRECTSOUNDNOTIFY lpdsnotify = NULL;
 static DSBPOSITIONNOTIFY notifyPositions[3] = { { 0,0 }, { 0,0 }, { 0,0 } };
-static HANDLE mixThread = 0;
-static HANDLE mutex = 0;
+static HANDLE mixThread = NULL;
+static HANDLE mutex = NULL;
 
 
 static void FillBufferPortion(char * ptr, int32_t remaining)
@@ -292,11 +297,11 @@ static void TeardownDSound(HRESULT err)
     notifyPositions[0].hEventNotify =
     notifyPositions[1].hEventNotify =
     notifyPositions[2].hEventNotify = 0;
-    mutex = 0;
-    lpdsnotify = 0;
-    lpdsbsec = 0;
-    lpdsbprimary = 0;
-    lpds = 0;
+    mutex = NULL;
+    lpdsnotify = NULL;
+    lpdsbsec = NULL;
+    lpdsbprimary = NULL;
+    lpds = NULL;
 }
 
 int32_t DirectSoundDrv_PCM_Init(int32_t *mixrate, int32_t *numchannels, int32_t *samplebits, void * initdata)