AVPACK

AVPACK is an executable compression utility for DOS, developed by Andrei Volkov.

Some AVPACK-compressed files can be decompressed by AVPACK, using the  option.

AVPACK can also decompress many files compressed by EXEPACK, LZEXE, or PKLITE.

Identification
A possible signature is ASCII "" at either offset 66 (normal files), or 34 ("encrypted" files).

Software

 * AVPACK at old-dos.ru
 * → Executable Tools Pack → packers/avpack.*