Some links and scribbles about Pervasive database software. This happens to be used by some old versions of AccPac.
Backups:
You CAN backup a Pervasive / Btrieve database while it is online! The term is Continuous Operations Mode. In this mode the DAT files are NOT locked in the file system, and can be copied by anything.
It's something like this:
dir /b /s *.dat > datafile-201604.txt
datafile-201604.txt
butil -startbu @datafile-201604.txt
xcopy /s *.dat s:\ADB butil -endbu @datafile-201604.txt
tags: pervasive, betrieve, database, db, accpac