Subject Firebird and Interbase on the same machine
Author Steve Harp
Hi All,

I've got a new project that requires me to run Firebird 1.5 and
Interbase 6.5 servers on the same machine. Now, since installing
Interbase, all my existing apps are failing to open saying that my
username and password aren't defined. Apparently, they are now using
Interbase instead of Firebird and are therefore using the wrong
security database. I can still open all of my Firebird databases with
IBExpert so I assume there must be a setting in the IBO components
that specify which server engine to use.

What should I look for?