Hi,

> After enabling the DummyPacketInterval parameter on firebird.conf, and
> set it to 60 (= 1 minute), some of the terminal machines started to
> have problems. They ran my application (made in Delphi + IBO) and
> during the connection process, the application just disappears from
> the taskmgr

that's what FIREBIRD.CONF says about using Dummy packets:

# DO NOT USE THIS OPTION. It may hang or crash Windows on the client side as
# explained here: http://support.microsoft.com/default.aspx?kbid=296265
# or may not prevent eventual inactive client disconnection for other OS.


So, that sould explain the behavior you're describing.

If you use FB 2.1, just set TCP KeepAliveTime to 1 minute and you're done.
(that should be possible to be done in FB 1.5 too... but it really do not
work in Windows... maybe next 1.5 build fix it!)


Regards,
Anderson