How do indexed files work with Easytrieve for Windows?
Easytrieve for Windows, release 11.1
Easytrieve for Windows comes with an indexed file system that is based on c-tree technology from Faircom. This option is included for free.
One can also use the Btrieve product, now called Pervasive SQL. It must be purchased separately.
Please review this link
for more information on setting a file descriptor for either of these two file systems.