No rdmd.exe in /bin64 on Windows - is this an issue?

[Scotpip]

Mike - thanks for responding!

You say that there wasn't a Windows 64 bit release "for good 
reason".

That sounds a bit ominous - I'd appreciate your insights into 
what was behind this.

Given the effort that's clearly gone into VisualD I was rather 
assuming that Windows was fully supported by the D community. As 
I'm pretty much stuck with Windows for this project, I hope I'm 
not mistaken?

Also, you say that you don't use rdmd. As someone who hasn't used 
a standalone compiled language for decades, I'd be grateful if 
you could share your workflow, as at first sight rdmd looks 
rather useful. For a non-trivial personal project, is there a 
specific approach you would recommend?