Subject Delphi App won't Connect to FB2.5
Author Craig Cox
Delphi XE, IB Objects 4.9, Firebird 2.5

I have written an app in Delphi XE that runs locally on a Win 2008 R2 Server that has Firebird 2.5 on it. I wrote the application on a laptop that has Firebird 1.5 on it, then copy the exe file to the Server to test it. All works great.

To make testing and debugging less awkward, I removed Firebird 1.5 from the laptop and installed Firebird 2.5, copied over the database files into an exact directory structure as on the Server, and tried to run it locally. I get an IB Object error code "335544375 unavailable database".

However, I am able to connect and look at my data using IB Expert, so I know I don't have a password, or path related problem.

Do I have some lingering Firebird 1.5 files causing a conflict even though I removed it? Could this be why IB Expert will work, but my application won't?