arc.ini must be like this
Code:
[External compressor:srep]
header = 0
packcmd = srep {options} -m3f -a2 $$arcdatafile$$.tmp $$arcpackedfile$$.tmp
unpackcmd = srep {options} -d -s - - <stdin> <stdout>
include arc.ini in [Files]
extract file during installation.
done!