This is IBM's TCP/IP network stack for use with IBM OS/2.

LAN Manager OS2

Microsoft LAN Manager is a networking system for OS/2 similar to their earlier MS-NET product. Licensed variants of this product include 3Com 3+Open, HP LAN Manager/X, IBM LAN Server, and Tapestry Torus.

LAN Server OS2 DOS

IBM LAN Server was a close cousin to Microsoft LAN Manager and was designed to run on top of OS/2

LANTastic DOS OS2 Windows

A peer to peer local area network OS which supports Ethernet, ARCNET and Token Ring.

Microsoft Mouse DOS Windows OS2

These are drivers provided by Microsoft for the Microsoft BusPort, serial, and PS/2 mice. Introduced in 1983, The Microsoft Mouse is historically important as it was one of Microsoft's earliest hardware products (The other being an Apple II Z-80 CP/M card). The first Mouse for the IBM PC was actually from Mouse Systems, not Microsoft. However, most clone mice emulated Microsoft's serial protocol and DOS driver software interface. The first application designed to make full use of the mouse was Microsoft Word for DOS, and they hyped a product called "Microsoft Windows" (not released until several years later) that was to compete against the upcoming Apple Macintosh and the Mouse Systems based Viscorp Visi On.

OS2 Device Driver Pak OS2

OS2 Device Driver Pak CD Volume 1.0 is a CD released by IBM to make installation of OS/2 Warp 4 easier.