Download latest SAP NW RFC SDK

Hello,

I need to know where I can download the latest SAP NW RFC SDK (7.20). According to note 1025361 it should be available for the following platforms I need:

Windows x86 32-Bit (Versionen: Windows XP, Windows Server 2003, Windows Vista, Windows Server 2008, Windows 7)

Windows x86_64 64-Bit (Versionen: Windows Server 2003, Windows Vista, Windows Server 2008, Windows Server 2008 R2, Windows 7)

I followed the path mentioned there

http://service.sap.com/patches

-> Browse our Download Catalog

-> Additional Components

-> SAP NW RFC SDK

-> SAP NW RFC SDK 7.11

-> <Plattform>

-> NWRFC_9-20004xxx.SAR

But there is no NW RFC SDK download for Windows x86 32bit, only Windows x64 64bit. But I also need the 32bit SDK. Where can I find it?