The SDK does not come with required DLLS

SOLVED

I downloaded the 2016 edition from here: http://www.sage.com/us/sage-50-accounting/download/sdk/download

When I run the exe, it gives me a ton of documentation and a reference to the API assembly (Sage.Peachtree.API.XML), but not the Sage.Peachtree.API.** DLLs themselves.  They do not install in the GAC, either.  I've tried uninstalling/reinstalling, but it never gives me those DLLs.

Has anyone else seen this?  How do I get those DLLs?