diff --git a/mozilla/extensions/python/xpcom/register.py b/mozilla/extensions/python/xpcom/register.py
deleted file mode 100644
index bc0ece9ec8d..00000000000
--- a/mozilla/extensions/python/xpcom/register.py
+++ /dev/null
@@ -1,71 +0,0 @@
-
-# ***** BEGIN LICENSE BLOCK *****
-# Version: MPL 1.1/GPL 2.0/LGPL 2.1
-#
-# The contents of this file are subject to the Mozilla Public License Version
-# 1.1 (the "License"); you may not use this file except in compliance with
-# the License. You may obtain a copy of the License at
-# http://www.mozilla.org/MPL/
-#
-# Software distributed under the License is distributed on an "AS IS" basis,
-# WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
-# for the specific language governing rights and limitations under the
-# License.
-#
-# The Original Code is the Python XPCOM language bindings.
-#
-# The Initial Developer of the Original Code is ActiveState Tool Corp.
-# Portions created by ActiveState Tool Corp. are Copyright (C) 2000, 2001
-# ActiveState Tool Corp.  All Rights Reserved.
-#
-# Contributor(s):
-#   Mark Hammond <MarkH@ActiveState.com> (original author)
-#
-# Alternatively, the contents of this file may be used under the terms of
-# either the GNU General Public License Version 2 or later (the "GPL"), or
-# the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
-# in which case the provisions of the GPL or the LGPL are applicable instead
-# of those above. If you wish to allow use of your version of this file only
-# under the terms of either the GPL or the LGPL, and not to allow others to
-# use your version of this file under the terms of the MPL, indicate your
-# decision by deleting the provisions above and replace them with the notice
-# and other provisions required by the GPL or the LGPL. If you do not delete
-# the provisions above, a recipient may use your version of this file under
-# the terms of any one of the MPL, the GPL or the LGPL.
-#
-# ***** END LICENSE BLOCK *****
-
-import os, sys
-
-def addSelf(fname):
-    #XXX the path hardcoding and env var reliance limits the usefulness
-    #XXX I don't even know if this is used, or usable, at all anymore.
-    try:
-        mozSrc = os.environ['MOZ_SRC']
-    except KeyError:
-        print "register.py: need MOZ_SRC to be set"
-        sys.exit(-1)
-    try:
-        komododist = os.environ['KOMODO']
-    except KeyError:
-        print "Set KOMODO"
-        sys.exit(-1)
-
-    bindir = os.path.join(mozSrc, "dist", "WIN32_D.OBJ", "bin")
-    idldir = os.path.join(mozSrc, "dist", "idl")
-    idl2dir = os.path.join(komododist, "SciMoz")
-    componentdir = os.path.normpath(os.path.join(bindir, 'components'))
-
-    base, ext = os.path.splitext(fname)
-    idlfile = base+'.idl'
-    pyfile = base+'.py'
-    xptfile = base+'.xpt'
-    if os.path.exists(idlfile):
-        # IDL file of same name exists, assume it needs to be updated
-        print r'%(bindir)s\xpidl -I %(idldir)s -I %(idl2dir)s -m typelib %(idlfile)s' % vars()
-        os.system(r'%(bindir)s\xpidl -I %(idldir)s -I %(idl2dir)s -m typelib %(idlfile)s' % vars())
-    print r'cp %(xptfile)s %(componentdir)s' % vars()
-    os.system(r'cp %(xptfile)s %(componentdir)s' % vars())
-    print 'cp %(pyfile)s %(componentdir)s' % vars()
-    os.system('cp %(pyfile)s %(componentdir)s' % vars())
-