public static Connection  getConnection() {
    Connection con =null;
    try {
        Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");
        String conStr = "jdbc:odbc:Driver={Microsoft Access Driver (*.mdb, *.accdb)};DBQ=" +
            "c:\myfolder\accesdbfile.accdb";
        con = DriverManager.getConnection(conStr);
    } catch(Exception e) {
        e.printStackTrace();}
    return con;
}

java.sql.SQLException: [Microsoft][ODBC Microsoft Access Driver]General error Unable to open registry key Temporary (volatile) Ace DSN for process 0xa4 Thread 0xec0 DBC 0x2f8574c                                                              Jet'.