> Suppose I have three applications MyPasswordManager, MyToolManager
> and MyMovieManager that each use a Firebird 2.5 Embedded database.
> Now lets say that I have a customer who bought and installed all three of my
> applications on the same machine.
>
> What happens when this customer has all three of these applications running
> on her computer at the same time?

What do you want to happen?

Since the apps are written by you and you are using the embedded engine, you have some choices. For example you could offer a central security repository which would share user profiles amongst your apps. In that case, the security/profile manager should be deployed as a separate element, otherwise you would not be able to upgrade the embedded engine without updating all of the applications at the same time.

> Will this cause any issues?

As long as you place the DLLs in the same folder the application EXEs and *not* a shared/common path (like System32) you will be fine.


Sean