The quick answer is to use the #pragma warning (disable: 4996) around the SQLConnectOption call:
#pragma warning(push)
#pragma warning(disable: 4996)
rc = SQLSetConnectOption(hdbc, SQL_AUTOCOMMIT, SQL_AUTOCOMMIT_OFF);
#pragma warning(pop)
A more sophisticated approach is to replace calls with SQLSetConnectOptionequivalent calls on SQLSetConnectAttr.
msdn ( MSDN SQLSetConnectOption), , . ; , 4- (StringLength) SQL_NTS, , 0, , , .