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. It uses Lempel–Ziv–Stac compression.
Identification
Files begin with ASCII string "MSTSM".
Software
- https://github.com/Sembiance/dexvert/blob/master/dos/NDFIX-1/NPACK.EXE?raw=true
 - The Devil's Doorknob BBS Capture (1996-2003) → Dloads/OTHERUTI/NDFIX-1.ZIP → NPACK.EXE
 - An NPACK.EXE utility was included with some Symantec products, such as Norton Desktop 1.0 and 2.0 for Windows.
 - Deark