I expect something simple like "put2clip c:\boot.ini" which would result in the same thing as right-clicking in explorer the boot.ini file and select 'copy'.
i looked at nirsoft's nircmd, thinkingms.com/pensieve/2009/03/14/ClipexeACommandLineToolForTheWindowsClipboard.aspx and steve.org.uk/Software/clipboard/ bot none of them seems to do the work or provide good documentation.
thanks.