OLEDB.NET 怎么访问Oracle8i

OLEDB.NET 如何访问Oracle8i
Private   OraConn   As   New   OleDb.OleDbConnection
        Private   OraCmd   As   New   OleDb.OleDbCommand

OraConn   =   New   OleDb.OleDbConnection
                OraConn.ConnectionString   =   "Provider=MSDAORA.1;user   id= "   &   UserID   &   ";password= "   &   Password   &   ";data   source= "   &   DataSource
                OraConn.Open()
                OraCmd.Connection   =   OraConn

为何打不开链接

[解决办法]
o Standard security:
"Provider=msdaora;Data Source=MyOracleDB;User
Id=myUsername;Password=myPassword; "
This one 's from Microsoft, the following are from Oracle
o Standard Security:
"Provider=OraOLEDB.Oracle;Data Source=MyOracleDB;User
Id=myUsername;Password=myPassword; "

o Trusted Connection:
"Provider=OraOLEDB.Oracle;Data Source=MyOracleDB;OSAuthent=1; "