On 21 Oct 2022, Paul Hayton said the following...
 
 PH> On 18 Oct 2022 at 07:18p, Clive Reuben pondered and said...
 PH>  
 PH>  CR> -------->> start concerning entries <<------------
 PH>  CR> 2022.10.18 13:36:06 Executing: sh /mystic/temp2/xfer.sh
 PH>  CR> 2022.10.18 13:36:06 Execution complete: 32512
 PH>  CR> -------->> end concerning entries <<--------------
 PH> 
 PH> Here we go, found it. It's mentioned in whatsnew.txt from back in the
 PH> development of 1.08
 PH> 
 PH> [snip]
 PH> 
 PH> + Added the ability to execute an MPL program instead of the command line
 PH>    for a protocol.  By starting your command line with a !, you can have
 PH>    Mystic run a MPE program.  For example:
 PH> 
 PH>        send Command: !test %1 %2 %3
 PH> 
 PH>    The above would execute test.mpe from your scripts directory and pass
 PH>    the results of the %1 %2 %3 protocol MCI codes as command parameters
 PH> to    the MPL program.  Keep in mind that if you do use this to execute
 PH> some    type of protocol, you must set the DSZLOG environment variable
 PH> yourself    and have it point to the current node's temp directory as
 PH> xfer.log.  Mystic    will also create an xfer.bat or xfer.sh (depending
 PH> on operating system) which
 PH>    can also be executed.

Ok... So, it really is just a normal system function then? I could not find it anywhere else in the logs and couldn't recreate it... Thanks, very much for letting me know!!! Much appreciated!

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--- Mystic BBS v1.12 A48 2022/07/15 (Raspberry Pi/32)