Windows Platform SDK
downloaded the Windows Platform SDK, the amd64. The problem is I can't
install it. When I try to, I get "Not a valid Win32 application."
[219 byte] By [TecToc] at [2007-12-18] 
The answer depends on what operating system/service pack (the one said in Start -> run -> sysdm.cpl) you are running, but I believe the answer is: download the x86 version instead.
OShah at 2007-9-8 >
The express version does not support any 64bit processor:
http://msdn2.microsoft.com/en-us/library/hs24szh9.aspx
MartinRichter at 2007-9-8 >
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