PACK (TurboPower)

File Format
Name	PACK (TurboPower)
Ontology	Electronic File Formats Compression Executable compression PACK (TurboPower)
Released	1987

See Pack for other formats with that name.

PACK is a simple executable compression utility for DOS EXE files. It only compresses the relocation table.

It was developed by TurboPower Software and Kim Kokkonen. It was distributed as source code (Pascal and assembly language).

Identification

Starting 10 bytes after the start-of-execution point (refer to MS-DOS EXE#Special file positions), the following byte sequence appears: 2e 8c 1e 06 00 2e 8c 06 08 00 8c c3 83 c3 10 8c.

For more details, look for "NewLoader" in the source code, noting that some of the first 10 bytes are not always the same.

Software

• PACK
  • exeutil.zip - Source code
  • tewi Power-Programmierung → CD1.{mdf,mds} → pascal/utility/exepack/... - Source code variant, and DOS binary

Sample files

• DSKCPY20.ZIP → DSKCOPY.EXE
• Shareware Grab Bag → 081/opcpnd26.arc → *.EXE