Helen Borrie wrote:

>
>> 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.

More often it's reported when the server cannot be accessed locally (via
XNET or IPC). This may be caused by the client library version mismatch.
Also, for Vista, the IpcName config setting adjustment is needed.


Dmitry