>Michel,
>Include "driver=SQL server;" with SQLConnectstring and change true to yes (didn't try with true before maybe it'd work too).
>In VS2005 it'd work as is because it uses SQL native client and doesn't need driver specified.
>For SQL2005 you can also use (if ODBC driver is installed):
>Driver = {SQL Native client}
>
>
>

>lnHandle = SQLStringConnect('Driver=SQL server;'+;
> 'Data Source = .\SQLEXPRESS;'+;
> 'AttachDbFilename="D:\Visual Studio Projects\Test\Test.mdf";'+;
> 'Integrated Security=SSPI;User Instance=yes')
>

I think the problem relies with the server name. I put the computer name but this doesn't work.