> Hi,
>
> I'm using Delphi 2010 and I'm accessing a Firebird 2.5 database using dbx.

I'm

> using the driver InterXpress for Firebird version 2.3.0.2.
>
> Here is my problem:
>
> I have 3 computers A, B and C
>
> On computer A, there is a file alias.conf with the alias ALIAS_TEST that

point

> to the database c:\temp\database-a.fdb. This alias.conf file is located in

my

> program folder C:\MyFolder. Other FB embedded files are also located in
> that same folder.
>
> On computer B, FB server is running and there is an alias.conf file with

the

> alias ALIAS_TEST that point to the database

c:\anotherfolder\database-b.fdb

>
> On computer C, FB server is also running and there is an alias.conf file

with

> the alias ALIAS_TEST that point to the database

c:\anyfolder\database-c.fdb

>
> On computer A, there is also some network drives mapped on computers B
> and C as the folllowing:
>
> X: -> \\computerB\sharedfolderX
> Y: -> \\computerC\sharedfolderY
>
> From computer A, I'm accessing a local firebird database (database-a.fdb)
> using Firebird EMBEDDED. So, to do that, I do not specify any server name

in

> my connection. Here is an example of my connection parameters:
>
> TSQLConnection.Params.Clear;
> TSQLConnection.Params.Add('user_name=sysdba');
> TSQLConnection.Params.Add('password=masterkey');
> TSQLConnection.Params.Add('Database=ALIAS_TEST');
> ...
>
> When I start my program from computer A, I can access my local database
> (ALIAS_TEST) using FB EMBEDDED without any problem. (What is important
> to know here is that the current directory is the folder where the program

is

> located. For example C:\MyFolder)
>
> Now, while my programm is runnig, if I change the current directory (for
> example it change to X:\some_folder because I'm using a TopenDialog object
> somewhere into my program), if I try to reconnect to the local database

using

> FB EMBEDDED, the program try to connect to the ALIAS_TEST database
> located on the computer B (because X: is mapped on the computer B)
> instead of the ALIAS_TEST locally . If I change back the current directory

to a

> local directory of the computer where the program is running from, I can
> connect back to my local ALIAS_TEST database without any problem. Same
> problem if I change the current directory to Y:, that time the program

will try

> to access the database ALIAS_TEST located on the computer C.
>
> So, it looks that when there is no server specified into parameters,
> something somwehre try to add one.
>
> I know it looks very strange but I have made several tests here and I'm

sure

> about that behaviour.
>
> So, since it cause me problems, could somebody help me about that and/or
> explain me about this behaviour?
>
> Is it possible that FB embedded try to detect and add some server name
> when none is specified?
>
> Thanks in advance.
>
> Guylain Plante
> OroLogic Inc.

You can't use embedded to connect to mapped drives. They must be local. You
can do some trickery to make this work but it is not advised.
If you want to connect to a remote server, you must provide the server name
and the alias as a minimum.
Alan