diff --git a/source/build/src/sdlayer.cpp b/source/build/src/sdlayer.cpp
index 19db4bb73..19cc7cc49 100644
--- a/source/build/src/sdlayer.cpp
+++ b/source/build/src/sdlayer.cpp
@@ -366,6 +366,10 @@ namespace Blood
 {
 	extern GameInterface Interface;
 }
+namespace ShadowWarrior
+{
+	extern GameInterface Interface;
+}
 
 GameInterface *CheckFrontend()
 {
@@ -384,7 +388,11 @@ GameInterface *CheckFrontend()
 			return &Redneck::Interface;
 		}
 		else
+		{
+			f = fopen("sw.grp", "rb");
+			if (f) return &ShadowWarrior::Interface;
 			return &Duke::Interface;
+		}
 	}
 }
 
diff --git a/source/sw/src/game.cpp b/source/sw/src/game.cpp
index 4bf81c887..543806fb0 100644
--- a/source/sw/src/game.cpp
+++ b/source/sw/src/game.cpp
@@ -5996,5 +5996,27 @@ saveable_module saveable_build =
     NUM_SAVEABLE_ITEMS(saveable_build_data)
 };
 
+extern void faketimerhandler();
+extern int app_main(int argc, char const* const* argv);
+extern void app_crashhandler(void);
+extern int32_t startwin_open(void);
+extern int32_t startwin_close(void);
+extern int32_t startwin_puts(const char*);
+extern int32_t startwin_settitle(const char*);
+extern int32_t startwin_idle(void*);
+extern int32_t startwin_run(void);
+
+GameInterface Interface = {
+	faketimerhandler,
+	app_main,
+	app_crashhandler,
+	startwin_open,
+	startwin_close,
+	startwin_puts,
+	startwin_settitle,
+	startwin_idle,
+	startwin_run
+};
+
 // vim:ts=4:sw=4:expandtab:
 END_SW_NS
diff --git a/source/sw/src/startwin.game.cpp b/source/sw/src/startwin.game.cpp
index e785e7a5e..639842fac 100644
--- a/source/sw/src/startwin.game.cpp
+++ b/source/sw/src/startwin.game.cpp
@@ -51,6 +51,9 @@ static int done = -1, mode = TAB_CONFIG;
 #define POPULATE_VIDEO 1
 #define POPULATE_CONFIG 2
 #define POPULATE_GAME 4
+// Thanks, Microsoft for not providing alternatives for the dialog control macros. :(
+#undef SNDMSG
+#define SNDMSG ::SendMessageA
 
 static int addSoundQualityItem(struct soundQuality_t *q, HWND hwnd)
 {