diff --git a/config.h.cmake b/config.h.cmake
index d6c4d98b2..0c7080d45 100644
--- a/config.h.cmake
+++ b/config.h.cmake
@@ -43,9 +43,6 @@
 /* Define to 1 if you have the <memory.h> header file. */
 #cmakedefine HAVE_MEMORY_H 1
 
-/* Define to 1 if you have the <multimon.h> header file. */
-#cmakedefine HAVE_MULTIMON_H 1
-
 /* Define to 1 if you have the <poll.h> header file. */
 #cmakedefine HAVE_POLL_H 1
 
diff --git a/config.h.in b/config.h.in
index 756b02b66..5f994c1b9 100644
--- a/config.h.in
+++ b/config.h.in
@@ -42,9 +42,6 @@
 /* Define to 1 if you have the <memory.h> header file. */
 #undef HAVE_MEMORY_H
 
-/* Define to 1 if you have the <multimon.h> header file. */
-#undef HAVE_MULTIMON_H
-
 /* Define to 1 if you have the <natupnp.h> header file. */
 #undef HAVE_NATUPNP_H
 
diff --git a/configure.ac b/configure.ac
index 83e2c9d1a..0eec04f9c 100644
--- a/configure.ac
+++ b/configure.ac
@@ -63,8 +63,7 @@ AM_CONDITIONAL(MACOSX, [test $osx = true])
 # various used headers
 dnl the whitespace is there to prevent AC_INCLUDES_DEFAULT
 AC_CHECK_HEADERS([stdint.h unistd.h poll.h sys/file.h sys/stat.h sys/types.h locale.h sys/socket.h signal.h langinfo.h sys/eventfd.h sys/timerfd.h sys/inotify.h], , , [[ ]])
-# Mingw does not ship with multimon.h
-AC_CHECK_HEADERS([multimon.h io.h direct.h share.h natupnp.h], [], [], [[#include <windows.h>]])
+AC_CHECK_HEADERS([io.h direct.h share.h natupnp.h], [], [], [[#include <windows.h>]])
 # iconv
 AX_ICONV
 # vasprintf is a GNU extension
diff --git a/src/platform/C4WindowWin32.cpp b/src/platform/C4WindowWin32.cpp
index 992f83297..a7882cc91 100644
--- a/src/platform/C4WindowWin32.cpp
+++ b/src/platform/C4WindowWin32.cpp
@@ -46,15 +46,6 @@
 #include <C4windowswrapper.h>
 #include <mmsystem.h>
 #include <shellapi.h>
-// multimon.h comes with DirectX, some people don't have DirectX.
-#ifdef HAVE_MULTIMON_H
-
-// Lets try this unconditionally so that older windowses get the benefit
-// even if the engine was compiled with a newer sdk. Or something.
-#define COMPILE_MULTIMON_STUBS
-#include <multimon.h>
-
-#endif
 
 #define C4ViewportClassName L"C4Viewport"
 #define C4FullScreenClassName L"C4FullScreen"