SHRINK (executable compression)
From Just Solve the File Format Problem
SHRINK is an executable compression utility for DOS .COM files. It uses run-length encoding.
The original SHRINK 1.0 (1988) was developed by Thomas G. Hanlin III. SHRINK 2.0 (1995) was developed by Kevin Tseng. The precise relationship between v1.0 and v2.0 is not clear.
Identification
v1.00: The first 28 bytes of a compressed file are probably always the same. The first 16 are 50 9c fc be 1f 01 bf 00 7e 57 b9 34 00 f3 a4 8b.
v2.00: The first 35 bytes of a compressed file are probably always the same. The first 16 are e9 00 00 50 9c fc be 27 01 8b fe 8c c8 05 00 10.
Software
- SHRINK 1.0:
- SHRINK.ZIP
- ANORMAL's DOSEXE collections → Executable Tools Pack → packers/shrink.10-thomas hanlin
- SHRINK 2.0:
- ANORMAL's DOSEXE collections → Executable Tools Pack → packers/shrink.20-kevin tseng
