diff --git a/sys/winnt/nethack.def b/sys/winnt/nethack.def
new file mode 100644
index 000000000..ee27ed51f
--- /dev/null
+++ b/sys/winnt/nethack.def
@@ -0,0 +1,9 @@
+NAME		NETHACK
+DESCRIPTION	'NetHack 3.3.0 for Windows NT'
+EXETYPE		WINDOWS
+STUB		'WINSTUB.EXE'
+CODE		PRELOAD MOVEABLE DISCARDABLE
+DATA		PRELOAD MOVEABLE MULTIPLE
+HEAPSIZE	4096
+STACKSIZE	9216
+EXPORTS		WndProc