diff --git a/d1x-rebirth/arch/include/window.h b/common/include/window.h
similarity index 100%
rename from d1x-rebirth/arch/include/window.h
rename to common/include/window.h
diff --git a/d2x-rebirth/arch/include/window.h b/d2x-rebirth/arch/include/window.h
deleted file mode 100644
index 14186310b..000000000
--- a/d2x-rebirth/arch/include/window.h
+++ /dev/null
@@ -1,43 +0,0 @@
-/*
- *  A 'window' is simply a canvas that can receive events.
- *  It can be anything from a simple message box to the
- *	game screen when playing.
- *
- *  See event.c for event handling code.
- *
- *	-kreator 2009-05-06
- */
-
-#ifndef DESCENT_WINDOW_H
-#define DESCENT_WINDOW_H
-
-#include "event.h"
-#include "gr.h"
-#include "console.h"
-
-typedef struct window window;
-
-extern window *window_create(grs_canvas *src, int x, int y, int w, int h, int (*event_callback)(window *wind, d_event *event, void *data), void *data);
-extern int window_close(window *wind);
-extern int window_exists(window *wind);
-extern window *window_get_front(void);
-extern window *window_get_first(void);
-extern window *window_get_next(window *wind);
-extern window *window_get_prev(window *wind);
-extern void window_select(window *wind);
-extern void window_set_visible(window *wind, int visible);
-extern int window_is_visible(window *wind);
-extern grs_canvas *window_get_canvas(window *wind);
-extern void window_update_canvases(void);
-extern int window_send_event(window *wind, d_event *event);
-extern void window_set_modal(window *wind, int modal);
-extern int window_is_modal(window *wind);
-
-#define WINDOW_SEND_EVENT(w, e)	\
-do {	\
-	con_printf(CON_DEBUG, "Sending event %s to window of dimensions %dx%d\n", #e, window_get_canvas(w)->cv_bitmap.bm_w, window_get_canvas(w)->cv_bitmap.bm_h);	\
-	event.type = e;	\
-	window_send_event(w, &event);	\
-} while (0)
-
-#endif