Index: branches/release-41/lib/MT/XMLRPCServer.pm
===================================================================
--- branches/release-41/lib/MT/XMLRPCServer.pm (revision 2264)
+++ branches/release-41/lib/MT/XMLRPCServer.pm (revision 2709)
@@ -14,5 +14,5 @@
     my $cfg = $ENV{MOD_PERL} ?
         Apache->request->dir_config('MTConfig') :
-        $MT::XMLRPCServer::MT_DIR . '/mt-config.cgi';
+        ($ENV{MT_CONFIG} || $MT::XMLRPCServer::MT_DIR . '/mt-config.cgi');
     my $mt = MT->new( Config => $cfg )
         or die MT::XMLRPCServer::_fault(MT->errstr);