Enable QuickEdit mode, under the Options tab of your shortcut to the command shell. Mark with the mouse, right-click to copy, right-click again to paste.
While you’re there, enable a hotkey (like CTRL + ALT + C) for lightning fast access to the shell.
And no, you can’t have CTRL + C for COPY, because CTRL + C means BREAK.
On a related note, the Microsoftee who changed the default setting of QuickEdit mode between Windows Server 2000 and 2003 is an idiot and I heap curses upon him each workday.