The version recommended to be used is "eXdupe 0.3.5" configured in this way:
Code:
[External compressor:eXdupe]
packcmd = "EXDUPE\eXdupe.exe" -x3 -g1 -t2 $$arcdatafile$$.tmp $$arcpackedfile$$.tmp
unpackcmd = "EXDUPE\eXdupe.exe" -R $$arcpackedfile$$.tmp $$arcdatafile$$.tmp
datafile = $$arcdatafile$$.tmp
packedfile = $$arcpackedfile$$.tmp
All other next versions create problems with FA