At 18:29 11/09/2008, you wrote:

>Hello,
>due to a report from a customer, I upgraded a working Fb 2.0.4
>installation on Windows to Fb 2.1.1, and suddenly I cannot connect
>though connection strings such as
>
>localhost:alias_name
>
>Here's what I get:
>
>SQL Message : -902
>Unsuccessful execution caused by a system error that precludes
>successful execution of subsequent statements
>
>Engine Code : 335544344
>Engine Message :
>I/O error for file "ndgest"
>Error while trying to open file
>The system cannot find the file specified.

Can't find the right aliases.conf?

>Using either
>
>localhost:path

expected

>or
>
>alias_name

You have the FIREBIRD variable available and it's pointing to the Fb 2.0.4 aliases.conf

>or
>
>path

expected

>works. Switching back to 2.0.4 works as well. I am testing with
>FlameRobin and ISQL. Couldn't find any pointers in the release notes
>or on the Internet. I must be missing something obvious. Does anyone
>have a clue?

Check whether the alias exists in Fb 2.1's aliases.conf; also check for existence of the FIREBIRD variable and if so, update it to Fb 2.1's root dir.

Just clues...

./h