I've noticed, the are more and more temp files made by dbIsam on my working
directory even, when I close all apps. What am I missing?
Please, advise,
Andrej
If they are numeric they are caused by the improper shutdown of your app, or at least a query going wrong. They are temporary files created by a TDBISAMQuery and will be cleaned up (ie deleted) if things close down properly.
It sounds as though you have a bit of debugging to do