Microsoft Windows network related data
File type: System file
An msn file extension is related to the Microsoft Windows operating system and used for its network related files.
Found 3 different file type records with the same msn filename suffix.
File type category:
System file
Date updated: December 30, 2024
The msn file extension is often associated with the Microsoft Windows, an operating system for IBM-PC desktop and laptop computers.
The msn file contains network settings (list of blocked Internet host).
Probably not meant to be accessed by the user.
Probably cannot be converted to anything else.
Software applications that can open msn files:
Microsoft Windows
Software apps that create msn files:
Microsoft Windows
Software apps that manage or store settings in msn files:
Microsoft Windows
File type category:
Game file
Date updated: October 2, 2026
Descent was developed by Parallax Software and published by Interplay for Microsoft MS-DOS. Its .msn files define missions that the game can load.
A Descent mission file belongs to the game's mission data rather than being a general-purpose document. It is used together with the other files that make up a Descent mission and is not normally opened as a standalone file.
The format is associated with the original MS-DOS version of Descent and is a legacy game format.
Open the .msn file with the Microsoft MS-DOS version of Descent. Install or place the mission and its associated files where the game can find them, then select the mission from within the game if it is supported by that installation.
The file is not intended for ordinary document applications. Editing it manually can prevent Descent from loading the mission.
There is no general-purpose conversion for a Descent .msn file. It is a mission-definition file for the game, so it normally remains in its original format.
To use the mission with another Descent-compatible release or port, use a tool or port that specifically supports Descent mission files and follow its import or conversion procedure.
Software applications that handle other tasks involving msn files:
Microsoft MS-DOS
File type category:
Various data file
Date updated: September 20, 2019
Record marked as obsolete and not updated for a long time.
The msn file extension is associated with MSN Content Plus, a suite of custom MSN Messenger content enhancement tools and programs for Microsoft Windows, developed by MSN Content Plus Inc.
The msn file stores some kind of installation data for NSN Content Plus.
Software applications that handle other tasks involving msn files:
Microsoft Windows
MSN Content Plus
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