System Files

MS-DOS

by Microsoft Corporation · opens 4 file types
Microsoft MS-DOS
AT A GLANCE
DeveloperMicrosoft Corporation
PlatformsMicrosoft MS-DOS
Opens4 file types
Get it fromwww.microsoft.com
Download MS-DOS

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4 file types verified
Last reviewed Oct 2026

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What is MS-DOS?

MS-DOS is listed in our database as a program that opens or converts the file formats shown on this page. It runs on Microsoft MS-DOS. It is published by Microsoft Corporation. The formats it works with include .$01, .EMX, .B~K and .EMM.

You can get the official version from the developer's website (www.microsoft.com); we do not host the installer and only point you to the original source. A detailed, hand-checked description of MS-DOS is on the way; for now the information here comes straight from our database.

Files MS-DOS opens

4 formats
System Files
Developer Files
Audio Files

Click any badge for full per-format details - what it is, how to open it and how to convert it.

Download MS-DOS

SOURCEwww.microsoft.comofficial site - avoid third-party download portals
PLATFORMSMicrosoft MS-DOS

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programs & formats

Files MS-DOS opens most

1.$01MS-DOS pipe file
2.EMXMS DOS extender file
3.B~KMicrosoft Windows 3.x data
4.EMMExpanded memory manager data

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