diff --git a/Compilation-guide-(Windows).md b/Compilation-guide-(Windows).md
index 4f6692e..30428e2 100644
--- a/Compilation-guide-(Windows).md
+++ b/Compilation-guide-(Windows).md
@@ -17,7 +17,9 @@ Note that you might have to install `dsound.h` and `dinput.h` DirectX headers in
 
 Now build:
 
-    mingw32-make -f Makefile.win # If your compiler isn't called gcc/g++, you can set the proper compiler name with CC= and CXX=, standard Unix fare. You might also need to set WINDRES= if needed.
+    mingw32-make -f Makefile.win # If your compiler isn't called gcc/g++, you can set the proper compiler name with CC= and CXX=, standard Unix fare. You will also need to set WINDRES=.
+
+By default, D3D9 support is compiled in. If your MinGW has D3D headers/libs properly installed, it will work. If you however are unable to build D3D9 using your toolchain, you can disable D3D9 by adding HAVE_D3D9=0 to the make commandline. Recent MinGW-w64/i686-w64 builds are able to compile D3D9 without any fuss.
 
 ### Building GUI
 Since the command-line isn't very comfortable on Windows, you will most likely want RetroArch-Phoenix unless you're planning to launch via XBMC or something like that.