How about adding a Create Backup checkbox to the warning dialogue shown before a catalogue refresh?

Its check state would be the default specified in the global preferences and clicking Yes to Proceed would work exactly as now but it would also give the opportunity to create/don't create a backup for that invocation only.

Cheers Simon

It's in general recommended to let LLBLGen Pro make backups before a refresh. Only for people who don't want to create backups, the preference is there to switch it off. The thing is: after a while people switch off the warning dialog as they know what it says.