> > The Services API allows your application to request firebird to
> > perform a backup.
>
> Can you please explain this part a little more?
>

Firebird has an API called the Services API that can do things like
Add Users, Create Databases, Sweep and of course backup. Pretty much
all development environments provide some way to hook into that API,
so once you know how for your particular environment, it is a
reasonably trivial job to create an application or service that does
it in whatever manner you require. This application does not even have
to be running on the database server itself, so you can remotely
trigger Firebird to make a backup of a specific database.

There are also several freeware applications out there that can be
used to make Firebird backups, so check these out before reinventing
any wheels.

Adam