OS/2 PACK2 archive
(I found the actual official tools for working with this format.) |
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== Identification == | == Identification == | ||
| − | Files apparently begin with bytes {{magic|a5 96 fd ff}}. | + | Files apparently begin with bytes {{magic|a5 96 fd ff}}. ASCII "{{magic|FTCOMP}}" appears at offset 24. |
== Software == | == Software == | ||
| − | |||
* The OS/2 3.0 and 4.0 install CDs contain OS/2 command-line tools UNPACK.EXE and UNPACK2.EXE (some files that cannot be unpacked with UNPACK will work with UNPACK2) | * The OS/2 3.0 and 4.0 install CDs contain OS/2 command-line tools UNPACK.EXE and UNPACK2.EXE (some files that cannot be unpacked with UNPACK will work with UNPACK2) | ||
* The OS/2 Developer's Toolkit contains OS/2 command-line tools PACK.EXE and PACK2.EXE | * The OS/2 Developer's Toolkit contains OS/2 command-line tools PACK.EXE and PACK2.EXE | ||
| + | * [https://winworldpc.com/product/pc-dos/7x WinWorld: PC-DOS 7.x] → "IBM PC-DOS 7.0 (3.5-XDF)" → 144US1.DSK → UNPACK2.EXE (for DOS) | ||
| + | * https://github.com/martinlindhe/formats (Maybe just parses the header.) | ||
| + | |||
| + | ''Caution: Some FTCOMP archives contain absolute file paths, which by default are respected some or all UNPACK utilities.'' | ||
== Sample files == | == Sample files == | ||
Revision as of 19:00, 8 March 2024
FTCOMP is the signature of a compressed archive format used on OS/2, particularly by software installers. Whether "FTCOMP" is the correct name of the format is unknown.
On the OS/2 3.0 and 4.0 installation disks, some FTCOMP files are named with a trailing underscore, like "DSPRES.DL_". These archives contain a single compressed file, and are named after that file with the last letter replaced with an underscore. Some FTCOMP files are named with no extension, like "BUNDLE" or "KLONDIKE" or "SERIAL". These archives contain a collection of compressed files - "BUNDLE" if there's no other archive in the same directory, or some name specific to its contents.
There are apparently two versions of this format, since some tools report "this file requires a newer tool to extract".
Identification
Files apparently begin with bytes a5 96 fd ff. ASCII "FTCOMP" appears at offset 24.
Software
- The OS/2 3.0 and 4.0 install CDs contain OS/2 command-line tools UNPACK.EXE and UNPACK2.EXE (some files that cannot be unpacked with UNPACK will work with UNPACK2)
- The OS/2 Developer's Toolkit contains OS/2 command-line tools PACK.EXE and PACK2.EXE
- WinWorld: PC-DOS 7.x → "IBM PC-DOS 7.0 (3.5-XDF)" → 144US1.DSK → UNPACK2.EXE (for DOS)
- https://github.com/martinlindhe/formats (Maybe just parses the header.)
Caution: Some FTCOMP archives contain absolute file paths, which by default are respected some or all UNPACK utilities.
