ASP.NET connecting Nav 3.60 using C/ODBC

Hello, We have build an ASP.NET intranet solution thats getting, updating and inserting data from Navision 3.60 via the C/ODBC connector. The intranet application is used by 20 users and after each quarter the webserver(IIS) must be reset because the intranet application has a timeout. Is there a better C/ODBC driver or an other solution to make the connection with navision better??? Please help. Friendly Regards, Hans de Graaf Senior Webdeveloper