DOA 3.4.6.1 vs firewall

[Toto]

Hi,

I use an Oracle 9i database and Delphi 7 Professional with DOA 3.4.6.1 on Windows XP. My problem is: if i install a firewall software (tried several kinds) and try to connect to my database through a TOracleSession, I'll receive an empty error message and of course the connection will fail. No firewall alert. (With PL/SQL developer and SQL Plus there is no problem.) If I disable (or uninstall) my firewall, it works.
What should i do to solve this problem?

Thanks a lot,

Toto

 

[Marco Kalter]

What happens if you create an application and try to connect at runtime?

 

[Toto]

same result at design time and runtime, except for the caption of error dialog: design time: Delphi 7, runtime: name of the current application. And no error message, just the empty dialog.

 

[Marco Kalter]

That's odd. At run-time, is an exception raised in your application? If so, what is the exception class and when does it occur?

 

[Toto]

Yeah it is. Especially because i have no exception on my machine no more. Now it works, thus i can't catch the non existing exception ). It is strange. I experienced the above problem on several pcs, now i have to check it on the other machines. Thanks anyway.