Does System.Data.OracleClient support oracle 11g? If so which version? The .Internet appplication is presently running on 32bit server. We are improving to 64 bit. Will System.Data.OracleClient support 64 bit too? Version of System.Data.OracleClient being used at the moment 2... with oracle 9i.

System.Data.OracleClient is going to be depricated soon. Should you consider future you best continue that one Oracle Data Provider for .NET

Difficult question, based on this link it doesn't and it'll not later on either. However, I am presently using System.Data.OracleClient for connecting for an 64bit 11g server and I have got Oracle's 11g client tools installed and that i don't have any problems.