I don't know if this is even possible, but there is "--oodle=" option for arc.ini for xtool precompressor.
But I think this was invented for cases if you need two libraries for the same files.
In your case you need two libraries for different files.
I don't think this is possible.
Try it with "--oodle=" option.
Example
Code:
[External compressor:xtool7]
header = 0
packcmd = xtool.exe precomp -mkraken -t100p --oodle=oo2core_7_win64.dll - - <stdin> <stdout>
unpackcmd = xtool.exe decode -t75p -s - - <stdin> <stdout>
[External compressor:xtool9]
header = 0
packcmd = xtool.exe precomp -mkraken -t100p --oodle=oo2core_9_win64.dll - - <stdin> <stdout>
unpackcmd = xtool.exe decode -t75p -s - - <stdin> <stdout>
-mxtool7+xtool9
Edit: Try this without xtool
https://fileforums.com/showpost.php?...&postcount=161