ARG is a compressed archive utility, and its native .arg file format. It was developed by Igor Pavlov. It uses Huffman coding.
Pavlov is also the author of 7-Zip, though 7-Zip does not support ARG format.
An ARG file starts with byte
0x00, and ends with
- ARG 1.00.001 beta (1994-06-05) - DOS binary + source code