Attempt four: http://gnuk.net/dmd-2.064-beta-newsc-lib64-4.exe
This one has a couple more changes to the dmd2beta.zip it is downloading from my server.
1. dmd.exe has been replaced with one built from 2.064 branch HEAD (so I didn't have to use LINKCMD64). 2. lib64 has been added and phobos64.lib and gcstub64.lib have been moved into there from lib.