File Extension Library

.MSN File Extension

  • Developer by: Microsoft
  • Category: Settings Files

What are .MSN files and how to open them?

Can't open .MSN file? Are you wondering what it contains? On our site we will explain to you what this file is, what it is used for and what software opens the .MSN file.

What is a .MSN file extension?

.MSN file extension is created by Microsoft. .MSN has been classified as Settings Files.

.MSN is Host Blocking File

Contains a list of blocked Internet hosts, often identified by IP addresses; prevents certain websites and other Internet locations from being accessed.

The default host blocking file is typically named "hosts.msn" and is located in the "C:\WINDOWS\system32\drivers\etc" directory.

How to fix problems with .MSN files

  1. You need to update the application that you normally use to open .MSN files. Only the latest version of the software supports the current .MSN file format
  2. You need to check the .MSN file for viruses. To do this, you need to scan it with a popular antivirus (Norton, Nod32, Kaspersky, Dr.Web, etc.)