connect DB2 UDB from .NET application

hi,

We have a requirement to connect DB2 UDB database from .NET application:

We checked on below mentioned link that following drivers can be used to connect to DB2 database:

     OLEDB Driver, ODBC and CLI Driver,DB2 .NET Provider

http://www.codeproject.com/Articles/4870/Connect-to-DB2-from-Microsoft-NET

Need guidance on how to start with installing these drivers on machine.

1. Ideally which driver should be used to achieve better performance.
2. To start with ODBC and CLI driver I’ve found below link:

http://www.withdata.com/ad/tips/how-to-install-and-configure-db2-odbc-driver.html

1. Can  anyone confirm if it is the correct way to proceed?

appreciate the help