dco can work for 64 bit,and base on D2.067b1:code.dlang.org

[FrankLike via Digitalmars-d-announce]

dco is a build tool,and very easy to use,it can build dfl64.lib 
,dgui.lib or other your projects,it can auto copy dfl.lib to the 
dmd2\windows\lib or lib64.
After you work on the dfl2,use the build.bat,you will feel it's 
very easy to use.

dco:
https://github.com/FrankLIKE/dco/
dfl2:
https://github.com/FrankLIKE/dfl2/
Frank