> I have an 3rd party application running firebird 1.5.
>
>
> I want to install firebird 2.5 instance, with my application, without affecting
> the other app.

I did a video on that topic quite some time ago.
http://www.iblogmanager.com/download/demos/firebird/firebird_multiple_instances_windows.htm

I hope I didn't miss anything important at that time.



--
With regards,
Thomas Steinmaurer
http://www.upscene.com

Professional Tools and Services for Firebird
FB TraceManager, IB LogManager, Database Health Check, Tuning etc.