My question has to do with the trail.txt file generated after every work session in proe.
Why is this file genrated?- -See below
How can it be used? - Salvage lost work after a crash (possibly)
Is it possible to prevent it being generated? - NO
Is it possible to delete all previous trail files generated so far as when old versions of a part are deleted? - Yes, the purge command will remove all but the last one. I put this into the batch command that launches Pro/E.
Keep in mind that a purge will keep the latest version of the file (e.g., trail.txt.293), so this will continue to increment. If you want restart from .1 every time, you could specify the trail file location in config.pro (i.e., trail_dir C:\Temp\Trail), then use modify the batch file to delete trail.txt.* before launching Pro/E.