It was originally designed to run on top of Operating System/2 (OS/2) Extended Edition.

[1] The network client was called IBM LAN Requester and was included with OS/2 EE 1.1 by default.

There were also LAN Server products for other operating systems, notably AIX[4]—now called Fast Connect[5]—and OS/400.

[6] Predecessors included IBM PC LAN Program (PCLP).

[17][18] Add-ons included Directory and Security Server,[19] Print Services Facility/2 (later known as Advanced Printing),[20] Novell NetWare for OS/2,[21] and LAN Server for Macintosh.