Ultimate Packer for eXecutables
Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004
UPX 1.25w Markus F.X.J. Oberhumer & Laszlo Molnar Jun 29th 2004
Usage: upx [-123456789dlthVL] [-qvfk] [-o file] file..
Commands:
-1 compress faster -9 compress better
--best compress best (can be very slow for big files)
-d decompress -l list compressed file
-t test compressed file -V display version number
-h give this help -L display software license
Options:
-q be quiet -v be verbose
-oFILE write output to `FILE'
-f force compression of suspicious files
--no-color, --mono, --color, --no-progress change look
Backup options:
-k, --backup keep backup files
--no-backup no backup files [default]
Overlay options:
--overlay=copy copy any extra data attached to the file [default]
--overlay=strip strip any extra data attached to the file [dangerous]
--overlay=skip don't compress a file with an overlay
Options for dos/
com:
--8086 make compressed
com work on any 8086
Options for dos/exe:
--8086 make compressed exe work on any 8086
--no-reloc put no relocations in to the exe header
Options for dos/sys:
--8086 make compressed sys work on any 8086
Options for djgpp2/coff:
--coff produce COFF output [default: EXE]
Options for watcom/le:
--le produce LE output [default: EXE]
Options for
win32/
pe & rtm32/
pe:
--compress-exports=0 do not compress the export section
--compress-exports=1 compress the export section [default]
--compress-icons=0 do not compress any icons
--compress-icons=1 compress all but the first icon
--compress-icons=2 compress all but the first icon directory [default]
--compress-resources=0 do not compress any resources at all
--strip-relocs=0 do not strip relocations
--strip-relocs=1 strip relocations [default]
file.. executables to (de)compress
This version supports: dos/exe, dos/
com, dos/sys, djgpp2/coff, watcom/le,
win32/
pe, rtm32/
pe, tmt/adam, atari/tos, linux/386
UPX comes with ABSOLUTELY NO WARRANTY; for details type `upx -L'.