NPack
From Just Solve the File Format Problem
NPack is a file compression utility for DOS. It was developed by Stac Electronics and later acquired by Symantic in 1991.
Identification
Files begin with ASCII string MSTSM
Software
- https://github.com/Sembiance/dexvert/blob/master/dos/NDFIX-1/NPACK.EXE?raw=true
- An NPACK.EXE utility was included with some Symantec products, such as Norton Desktop 1.0 and 2.0 for Windows.