https://d3codex.com/pickbasic-flashbasic/u001e-user-exit/
u001e user exit - D3Codex
The u001e user exit returns the checksum of a string.
user exit
https://www.veritas.com/content/support/en_US/doc/16222484-147321455-0/v15490528-147321455
About backing up archive log files with the user exit program | Configuring NetBackup for DB2 |...
backing uplog fileswith theuser exitarchive