Hello Daniel,

>
> Does anyone have any pointers as to why someone has to be logged in?
>

If you are not logged in then a local connection is not going to work.
You will need to make sure Firebird is installed as a service rather
than an application (obviously). Then change your connection strings
to use a TCP/IP loopback.

eg:

C:\Program Files\Firebird\Firebird_1_5\bin\gbak.exe" -B
localhost:C:\SOAPServices\myService\mydatabase.fdb"
C:\SOAPServices\myService\mydatabase.fbk" -user sysdba -pass masterkey

Adam