I had no information about PZlib V3 was not supported. Thanks,but in this case another problem :
ISDONE :
[External compressor
zlib]
header = 0
packcmd = pzlib e -v - -o - <stdin> <stdout>
unpackcmd = pzlib d - -o - <stdin> <stdout>
pzlib3hotfix.exe ,both dlls and arc.ini included...
error : unsupported compression method pzlib
unarc.dll returned an error code : -2
i dont understand.
and where can i get new information about PZlib ? Is this the only place ?