How to upgrade BW 3.5 to SAP Netweaver 2004s on Windows platform?

Hi all of you,

I am interested in learning as to how to upgrade BW 3.5 to SAP Netweaver 2004s on Windows platform (Windows 2003 server and Oracle 10g database)?

Can any one of you please share your experiences. There is a case study that I found in the forum but that tells how to upgrade on Sun Solaris 10 OS so I could not figure much from that.

Please help.

Thank you.

TR.