To Connect to an ODBC Database from the Connect to Database Dialog

Open the Connect to Database dialog ( Drawing > Attach > Database > Connect to Database ).
Set the Database Server to ODBC.
Provide the connect string by entering the Data Source Name created in the ODBC Administrator.
If you do not enter a connect string or if you enter an "*" as the data source name, the ODBC driver manager displays and you can select the desired data source from the list box.