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.MSN File Extension

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File TypeHost Blocking File

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CategorySettings Files


File format categories include Binary, Text, XML, and Zip. The format of this file type has not been determined.


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

More Information

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

Programs that open MSN files
Referenced by the operating system
Updated 9/30/2008

FileInfo - The File Extensions Database

This page contains information about the .MSN extension and its known file associations. Our goal is to help you understand what an MSN file is and how to open it.

The Host Blocking file type, file format description, and programs listed on this page have been individually researched and verified by the FileInfo team. We strive for 100% accuracy and therefore do not publish any information we have not verified.

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