Hello g00r00!

Revised the command lines some more... To summarize, this seems to work:

       Active ³ Yes
    Extension ³ 7Z
           OS ³ Linux
  Description ³ 7-ZIP
     Pack Cmd ³ 7z a -ba -y "%1" "%2" >>
   Unpack Cmd ³ 7z e -ba -y -o"%3" "%1" "%2" >>
     View Cmd ³ 7z l -y "%1" >> "%3%2" 2> /dev/null; exit $? >>

Notice the skipping of -ba for viewing as the headers produced by 7z are
actually somewhat useful for the user.

       Active ³ Yes
    Extension ³ ARJ
           OS ³ Linux
  Description ³ ARJ32 ARJ Utilities
     Pack Cmd ³ arj a -e -i -y "%1" "%2" >>
   Unpack Cmd ³ arj e -e -i -y -w"%3" -ht"%3" "%1"
     View Cmd ³ arj l -i -y "%1" >> "%3%2" 2> /dev/null; exit $? >>

Notice the need for -ht during unpacking to avoid unpacking files into the
current working directory (= the Mystic base directory) of Mystic. This
would be needed for the default/stock "All" OS version, too.

Finally, the differing coloring of the viewing output can be fixed by adding a
somewhat "neutral" color switch (e.g. PIPE 07) to the end of prompts #432 and
#433 (some of the lightbar file list prompts).

Hoping some of this will be useful for future versions of Mystic (and for
others experimenting in the mean time)!

Best regards
Bj”rn

--- Mystic BBS v1.12 A47 2021/07/31 (Linux/64)