diff --git a/xpfe/AppCores/idl/makefile.win b/xpfe/AppCores/idl/makefile.win
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+++ b/xpfe/AppCores/idl/makefile.win
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+#!nmake
+#
+# The contents of this file are subject to the Netscape Public License
+# Version 1.0 (the "NPL"); you may not use this file except in
+# compliance with the NPL.  You may obtain a copy of the NPL at
+# http://www.mozilla.org/NPL/
+#
+# Software distributed under the NPL is distributed on an "AS IS" basis,
+# WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL
+# for the specific language governing rights and limitations under the
+# NPL.
+#
+# The Initial Developer of this code under the NPL is Netscape
+# Communications Corporation.  Portions created by Netscape are
+# Copyright (C) 1998 Netscape Communications Corporation.  All Rights
+# Reserved.
+
+# This makefile isn't intended to be run as a normal part of the build
+# (and isn't, at time of checkin!): it's a convenience for development work.
+# If the IDL compiler has been built (also not a normal part of the build),
+# then running this makefile will generate the h and cpp stubs from idl
+# in this directory, using the DOM IDL compiler.  In practice, since
+# the stubs are pregenerated and checked in, you will want to delete
+# every file from IDLSRCS except the one you're working on, and then
+# run this makefile during development, only.
+
+DEPTH=..\..\..
+IGNORE_MANIFEST=1
+
+IDLSRCS= \
+	AppCoresManager.idl \
+	BaseAppCore.idl     \
+	BrowserAppCore.idl  \
+	EditorAppCore.idl   \
+	MailCore.idl        \
+	RDFCore.idl         \
+	Toolbar.idl         \
+	ToolkitCore.idl
+
+
+XPCOM_DESTDIR=..\public
+JSSTUB_DESTDIR=..\src
+
+GENXDIR=genx
+GENJSDIR=genjs
+
+!include <$(DEPTH)\config\rules.mak>
+
+$(GENXDIR):
+	-mkdir $(GENXDIR)
+
+$(GENJSDIR):
+	-mkdir $(GENJSDIR)
+
+IDLC=$(DIST)\bin\idlc.exe
+GENIID=$(DIST)\bin\geniid.pl
+
+export:: $(GENXDIR) $(GENJSDIR) $(IDLSRCS)
+	@echo +++ make: generating xpcom headers
+	$(IDLC) -d $(GENXDIR) -x $(IDLSRCS)
+	@echo +++ make: generating JavaScript stubs
+	$(IDLC) -d $(GENJSDIR) -j $(IDLSRCS)
+
+install::
+	$(MAKE_INSTALL:/=\) $(GENXDIR)\nsIDOM*.h $(XPCOM_DESTDIR)
+	$(MAKE_INSTALL:/=\) $(GENJSDIR)\nsJS*.cpp $(JSSTUB_DESTDIR)
+	$(RM) -r $(GENXDIR)
+	$(RM) -r $(GENJSDIR)