At 11:14 AM 12/03/2009, you wrote:

>I have developed a delphi application that uses Firebird Embedded.
>When the program is running stand-alone (that is to say launched from the operating system shell), it works perfectly well.
>
>However, when the program runs under the Delphi IDE, the firbird client library spits the dummy. It raises an 335544373 error when an attempt
>to connect to a database occurs.
>
>Can any one please advise? How do you get FB embedded to work running
>under the aegis of an IDE?

Under Delphi, not. As is explained repeatedly throughout the documentation, embedded is a *deployment* model. For developing, when you need separate applications to connect simultaneously to the same database (as in Delphi + your app, when you use Run, and/or when accessing the database with utility tools), use Classic (2.0 and higher) or Superserver (if you are tied to using Fb 1.5).

Reason for the difference: the "local connect" protocol is not available to Classic in v.1.5.

./heLen