At 10:56 PM 17/07/2007, you wrote:

>My application converts data from a BDE database into FB 2.0.1. It
>works fine on my XP development system. But when it's run on my
>partner's Vista machine, sometime in the middle of doing this
>conversion it suddenly stops with this error:
>
>ISC ERROR CODE:335544375
>
>ISC ERROR MESSAGE:
>Unavailable database
>
>Since I'm not in the same room with this system when it's being
>tested, I don't know exactly where this occurs. The conversion
>involves the creation of two distinct FDBs, so it might be when the
>second is created (although a file access problem, ISTM, is reported
>as isc_io_error, 335544344).
>
>Can someone tell me what circumstances might cause isc_unavailable
>to be reported?

AFAIR, this is the error that occurs when there's a request to
connect to a database while the server is not running.

./heLen