How good is the Interbase/Firebird API?

Hi I am hoping that someone can save me some testing time. I am considering using Interbase/Firebird, but notice that there is no facility to set the maximim number of connections in php.ini - the API seems to be a bit basic. Last time I tested an RDBMS without a maximum setting, I found that there were problems with connection handling under heavy load with both persistent and non-persistent connections (this was with FrontBase ). It seemed to run out of connections and quickly died a nasty death ... Can anyone share their practical experience with how the PHP Interbase API functions under load? Also, I see from the archive that someone was having problems getting the API to function under Windows. Does anyone have this working ok? Geoff Caplan