Quoting special characters of a url in Cmd objects on Windows

[oheil]

I found this solution:

c=Cmd(`cmd /c start \"\" "http://maps.google.com/maps?t=k\"&\"q=loc:51.508062+-0.076051"`,windows_verbatim=true)
run(c)

which is not obvious and may only work for Windows.(of course only windows because of cmd)