连接Oracle数据库提示“OraOLEDB.Oracle.1未注册”错误
Oracle 9i,连接字符串是:Provider=MSDAORA.1;Password=drcom;User ID=drcom;Data Source=city;Persist Security Info=True;min pool size=4;max pool size=10
或:Provider=OraOLEDB.Oracle.1;Password=drcom;User ID=drcom;Persist Security Info=True;Data Source=city;min pool size=4;max pool size=10
但都是出错,提示“OraOLEDB.Oracle.1”或什么客户端未安装,但这台是9i,而且使用ADO也能连过去,是什么原因啊?