How to open .msn file format?

The probably reason why you are at this website is a problem with opening .msn file. The full name of the file is Host Blocking File. If the double-click on the file’s icon shows you a message that additional programs are needed to open the file, you’ll find the list of helpful programs in the bottom of the page.The developer of this format is Microsoft.

.msn file extension (Host Blocking File)

Category Developer/Producer File description Popularity
Settings Files Microsoft Host Blocking File
Programs using this file extension: .msn
ADS OS Software
  • Referenced by the operating system

The file extension .msn can be used by another programs. If you have some useful information about .msn file type that may help other users, please send them to us and we’ll update our database.

Visiting our website you are probably asking yourself:
  • What application can open .msn file?
  • How to open .msn file?
  • What is .msn file?
  • How can I convert .msn file?
  • Where can I find informations about .msn file extension?
We hope we have given you enough informations about this file type. Otherwise you can search some informations about .msn extension on or