Which version of the Windows SDK do I need?

I have a 64 bit Core 2 Duo processor but the 32 bit version of Vista. Also, I want to have the 64 bit libs and cross co开发者_Go百科mpiler.

Your SDK doesn't know the CPU, it call the operating system functions. So you only need the 32bits SDK

You need the 32bit SDK and the 64 bit SDK as I think the latter has X compiler options.