DOS ain't dead

UPX version 3.96 available (Announce)

posted by dggionco, Buenos Aires - Argentina, 29.10.2022, 15:35
(edited by dggionco on 29.10.2022, 16:52)

> Cool!
> This new version is able to compress the FPC 3.x.y compiled files (for
> DOS).
> Finaly!!!

WOW...

Dos version:

https://github.com/upx/upx/releases/download/v4.0.0/upx-4.0.0-dos.zip



From BUGS.txt:

Limitations
============

djgpp2/coff
-----------
* all overlays (except Allegro pakfiles) are silently stripped

dos/exe
-------
* normal dos/exes with new exe headers
* max ~24000 relocation records (...should be enough for everyone
* exe + sys combined images

watcom/le
---------
* 16-bit selector alias fixups
* 16-bit offset relocation for objects larger than 4 KiB
* 16:16 fixups

If you need any of the above (they're very rare), send us an URL of a
test file.

* 16-bit objects are not loaded into DOS memory
* There is still a problem with the wdosx extender: if you compress a
watcom/le file which does NOT contain the wdosx extender, and after this
you bind the wdosx stub to the compressed file, then it will work.
Otherwise it won't.
* unpacked pmwlite compressed programs might not work when compressed
with UPX (this is a bug in pmwunlite)

win32/pe
--------
* writable shared sections (`--force' *may* work)
* certificates in the image
* compressing files which contain a big BSS requires lots of memory
during compression

Complete thread:

• UPX version 3.96 available - rr, 01.02.2020, 23:11 (Announce)
  • UPX version 3.96 available - dggionco, 29.10.2022, 03:28
    • UPX version 3.96 available - Laaca, 29.10.2022, 09:31
      • UPX version 3.96 available - dggionco, 29.10.2022, 15:35
      • UPX version 4.0.2 available - Rugxulo, 13.03.2023, 00:24
    • UPX version 3.96 available - dggionco, 29.11.2022, 10:47
      • UPX version 4.0.2 available - CandyMan, 08.02.2023, 00:31