initial GnuPG install?

[Claude Poliakoff, MD FACS]

Your posted instructions were quite clear. I checked for prior instances 
of gpg.exe and found none. downloaded and installed the Windows XP 
binary, tried entering gpg.exe in a DOS cmd window, and command not 
recognized, so off to Control Panel>System>advanced tab & added    
;C:\Program Files\GNU\GnuPG    with no improvement. So checked again for 
instance of gpg.exe in search of entire system, again finding no 
instance thereof. Help appreciated as I am very intrigued by the 
prospect of pluggin in OpenPGP for both authentication and encryption.

Thanks in advance.
Claude