Editing LAN Manager (section)

{{Short description|Microsoft network operating system}}
{{Use mdy dates|date=March 2025}}
{{Use American English|date=February 2025}}
{{Infobox OS
| name = LAN Manager<!-- Name of program or distribution -->
| logo = <!-- filename only (no wikilink, no Image:/File:) -->
| logo caption = 
| logo size = 
| logo alt = 
| screenshot = <!-- filename only (no wikilink, no Image:/File:) -->
| caption = 
| screenshot_size = 
| screenshot_alt = 
| collapsible = 
| version of = <!-- For articles about releases of operating systems ONLY -->
| developer = [[Microsoft]], [[3Com]]<!-- Name of main developer or sponsor-->
| family = [[OS/2]]<!-- "Unix-like" or "Microsoft Windows" -->
| working state = Discontinued<!-- "Current", "Discontinued" (operating systems), or "No longer supported" (releases) -->
| source model = [[Closed source]]<!-- "Open source", "Closed source", or "Shared source" -->
| released = {{Start date and age|1987}}
| discontinued = Yes<!-- DON'T use this for articles about releases of operating systems -->
| RTM date = <!-- {{Start date and age|YYYY|MM|DD|df=yes/no}} ONLY for articles about OS releases -->
| GA date = <!-- {{Start date and age|YYYY|MM|DD|df=yes/no}} ONLY for articles about OS releases -->
| latest release version = 2.2a
| latest release date = {{Start date and age|1994}}
| latest preview version = 
| latest preview date = <!-- {{Start date and age|YYYY|MM|DD|df=yes/no}} -->
| marketing target = [[Local area network]]ing
| programmed in = 
| language = <!-- Supported human languages (English, French, Italian, Arabic, ...) -->
| update model = Re-installation<!-- APT, Windows Update, etc. -->
| package manager = None<!-- dpkg, rpm, Windows installer, etc. -->
| supported platforms = [[x86]]<!-- IA-32, x64, Itanium, ARM, etc. -->
| kernel type = <!-- Hybrid, Monolithic, Microkernel, Exokernel, Nanokernel, etc. -->
| userland = 
| ui = 
| license = [[Proprietary software|Proprietary]]
| preceded by = [[MS-Net]], Xenix-NET, [[3+Share]]
| succeeded by = [[Microsoft Windows NT 3.1]]
| website = <!-- {{URL|www.example.org}} -->
| support status = <!-- For articles about releases of operating systems ONLY -->
| other articles = 
| prog_language = 
}}
'''LAN Manager''' is a discontinued [[network operating system]] (NOS) available from multiple vendors and developed by [[Microsoft]] in cooperation with [[3Com|3Com Corporation]].  It was designed to succeed 3Com's [[3+Share]] [[Server (computing)|network server]] software which ran atop a heavily modified version of [[MS-DOS]].