title: Is there an equivalent source command in Windows CMD as in bash or tcsh?
body: <p>I know that in the unix world, if you edit your <code>.profile</code> or <code>.cshrc</code> file, you can do a <code>source ~/.profile</code> or <code>source ~/.cshrc</code> to get the effect on your current session.  If I changed something in the system variable on Windows, how can I have it effect the current command prompt session without exiting the command prompt session and opening another command prompt session?</p>