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The ditto clipboard manager for Windows http://ditto-cp.sourceforge.net/ has completely solved this problem for me.

Sounds like you want XKeymacs it gives Emacs keyboard commands to all Windows applications, including a kill ring.

Same with the Mac clipboard.

The pro version of Alfred has this functionality built in: http://www.alfredapp.com/powerpack/

I will try this out, thanks.

Look up Clipboard Manager by Jan Zeman. It runs in the Windows sidebar.