[Hexagon123]

Originally Posted by bunti_o4u

Check your arc.ini file.

instead of using <stdin> <stdout>, you can try following options:
Option 1:

[External compressor:ZTool]
header    = 0
packcmd   = Resource64\ZTool\ztool e{:option} InFile - <stdout>
datafile   = InFile

Option 2:

Replace - - <stdin> <stdout> with $$arcdatafile$$.tmp $$arcpackedfile$$.tmp

Please let me know if it works for you..

It had to be solid = 0 or else, it may not work. Tried them but it had weak ratio than old XTool(s).