3+Share
| Protocol stack | |
| Purpose | LAN |
|---|---|
| Developer(s) | 3Com |
| Introduction | 1987 |
| Based on | XNS |
| Influenced | LAN Manager |
| OSI layer | 3 to 6 |
| Hardware | Ethernet, others |
3+Share, also known simply as 3+ or 3 Plus, was a pioneering file and print sharing product from 3Com. Introduced in the early 1980s, 3+Share was competitive with Novell's NetWare in the network server business throughout the 1980s. It was replaced by the joint Microsoft-3Com LAN Manager in 1990, but 3Com exited the server market in 1991.