Right, except that object numbers are one byte so the upper limit is 255. paul -----Original Message----- From: owner-hecnet at Update.UU.SE [mailto:owner-hecnet at Update.UU.SE] On Behalf Of Bob Armstrong Sent: Friday, December 04, 2009 10:12 AM To: hecnet at Update.UU.SE Subject: RE: [HECnet] Others DECnets However, the object identifier in the connect message can be either a number or a name. So while normal practice would be to connect to mail by connecting to object 27, it's also valid to connect to object "MAIL". FWIW, this is all in the DECnet database (at least on VMS it is) - $ MCR NCP SHOW KNOWN OBJECTS will give you a list. You can also use DEFINE/SET to modify the list $ MCR NCP DEFINE OBJECT foo NUMBER 493 Bob