Can you create file dsn for this ODBC driver?

>Has anyone had experience with a database called Unidata - now its an informix product by ibm, but years ago it was pick, some Multi Value database,..
>Basically I have the odbc drivers, and they are really unlike anything I have seen before, and I cant figure out how to create a connectionstring with it... I have tried all the tricks I know using ms sql server and Mysql connection type string.
>
>Like I said, its a longshot, that anyone has used odbc into this legecy type database and could be of any assistance. But its late, and I feel like shooting in the dark.
>
>Thanks much
>Bob Lee