AVPACK
From Just Solve the File Format Problem
				
								
				
				
																
				
				
								
				AVPACK is an executable compression utility for DOS, developed by Andrei Volkov.
Some AVPACK-compressed files can be decompressed by AVPACK, using the -X option.
AVPACK can also decompress many files compressed by EXEPACK, LZEXE, or PKLITE.
Identification
A possible signature is ASCII "AVPACK" at either offset 66 (normal files), or 34 ("encrypted" files).
Software
- AVPACK at old-dos.ru
 - ANORMAL's DOSEXE collections → Executable Tools Pack → packers/avpack.*