DSN-less Connection String:
DRIVER=<ODBC Driver Name>;HOST=<Hostname>;PORT=<Port>;DB=<Database Name>;UID=<Username>;PWD=<Password>;DIL=<DEFAULT ISOLATION LEVEL>
ODBC Driver Name
The name of the ODBC driver as it appears in Drivers tab of the Microsoft ODBC Data Source Administrator or in HKEY_LOCAL_MACHINESOFTWAREODBCODBCINST.INI