Reflate

[Razor12911]

This is the arc.ini

[External compressor:reflate]
header = 0
packcmd = reflate -c $$arcdatafile$$.tmp $$arcpackedfile$$.tmp
unpackcmd = reflate -d - - <stdin> <stdout>

From your end, make sure:
arc.ini, reflate.exe are extracted to the setup's temp directory.
All your IsArcExtract, must all have:
if not ISArcExtract (Component, Progress, ArchiveSource, Destination, '', false, Password, ExpandConstant('{tmp}\arc.ini'), True/False) then break;