[shazzla]

@Simorq :

arc.ini
--cache=0
[External compressor:razor]
header = 0
packcmd = razor a -y -d {option} $stdio$ <stdin> <stdout>
unpackcmd = razor e -y $stdio$ <stdin> <stdout>

$ arc.exe a -ep1 -r -ed -s; -mrazor:256m 1.arc "d:\1\*.exe"
FreeArc 0.67 (March 15 2014) creating archive: 1.arc
Compressing 4 files, 54,373,496 bytes. Processed 100%
ERROR: general (de)compression error in razor:256m

Edit :
Crashes all available patched versions ,no matter what file and parameters were used.
Did a system reboot ,too.