64-bit windows SDK

I know this has come up a number of times before, but I wonder if there’s a 64-bit windows SDK of a later version than 1.7.2 that I can use. The download area only has 32 bits SDK versions for windows, and it has been recommended to compile a 64 bits version myself but this is difficult because all third party libraries have to be compiled as well in 64 bits code. If someone already has a working 64 bits version for windows and is willing to share, that would be of great help to me.

Perhaps this thread will be of help–I posted my own thirdparty directory which includes 64-bit builds of several useful packages.