LAN Manager

Description

The name Lan Manager was used both for a network layer that was sold as an add on for OS/2 versions 1.x (and could run on later versions) and Unix systems and also a Network Operating System that combined a MicroSoft's or IBM' version of OS/2 server or Hewlett Packard's HP UX and the LAN Manager add on.

Actually the primary developer of the LAN Manager product was 3COM and it was based on a NOS that they had sold under the name 3+Share that used a modified version of DOS called MS-Net as their basis. 3COM originally released the product in 1988 as 3+Open LAN Manager with server support for OS/2 and client support for OS/2 and DOS with Apple Macintosh support added a little later, the company licensed the product soon thereafter to MicroSoft and then it was known initially as 3COM/Microsoft LAN Manager but later as just LAN Manager or LAN Manager/X for the Unix versions with the name of the OEM (HP, IBM, MS et al) in front although 3COM continued to offer the product under the 3+Open name. 3COM lost interest in the product and by 1991 had sold their codebase to MicroSoft who integrated the product into Windows NT Server.

Publications

Original documentation

• 3COM/Microsoft Lan Manager NDIS 1.0.2 Preliminary draft - 1989
• 3+Open LAN Manager Installation and Setup Guide - 1989
• 3+Open MS OS2 LAN Manager User Guide - 1989
• 3+Open MS OS2 LAN Manager User Reference - 1989
• 3+Open MS OS2 LAN Manager Administrator Guide - 1989
• 3+Open MS OS2 LAN Manager Administrator Reference - 1989
• 3+Open MS OS2 Documentation Set - 1989
• 3+Open LAN Manager 1.0 Release Notes - 1988
• 3+Open LAN_Manager 1.1 Release Notes - 1989
• 3+Open Version 1.1 Maintenance Update Release Notes - 1990
• 3+Open Messages Guide - 1989
• 3+Open Version 1.1 Maintenance Update Instructions -1990

Author

• MicroSoft
• IBM
• 3COM
• HP