All the Executor source as-is from the subversion tree it was last worked on.

src/include/NotifyMgr.h

@@ -0,0 +1,30 @@
+#if !defined (__NOTIFYMGR__)
+#define __NOTIFYMGR__
+
+/*
+ * Copyright 1993 by Abacus Research and Development, Inc.
+ * All rights reserved.
+ *
+ * $Id: NotifyMgr.h 63 2004-12-24 18:19:43Z ctm $
+ */
+
+typedef struct {
+    QElemPtr qLink	PACKED_P;
+    INTEGER qType	PACKED;
+    INTEGER nmFlags	PACKED;
+    LONGINT nmPrivate	PACKED;
+    INTEGER nmReserved	PACKED;
+    INTEGER nmMark	PACKED;
+    Handle nmIcon	PACKED_P;
+    Handle nmSound	PACKED_P;
+    StringPtr nmStr	PACKED_P;
+    ProcPtr nmResp	PACKED_P;     /* pascal void myresponse(NMRecPtr foo) */
+                        /* value of -1 means remove queue element
+                           automatically */
+    LONGINT nmRefCon	PACKED;
+} NMRec, *NMRecPtr;
+
+extern trap OSErrRET NMInstall( NMRecPtr nmptr );
+extern trap OSErrRET NMRemove( NMRecPtr nmptr );
+
+#endif /* __NOTIFYMGR__ */