The meaning of the Acronym MSX is...

MSX is

• MicroSoft eXtended

More Meanings For MSX:

• MSX Compressed CP/M file archive
• MicroSoft eXtended
• Matsushita Sony X
• Multinucleate Sphere X
• MascoTech, Inc.
• Midcourse Space Experiment
• Mossendjo, Congo

MSX is also in:

• Airport Codes
• File Extensions
• General
• Military
• NYSE Symbols
• Unfiled