GnuPG 1.4.x is the portable standalone version of GnuPG GnuPG 2.0.x is a modernized version of GnuPG including support for S/MIME and Secure Shell . You may install both versions on the same system as they are designed to allow for this. . . The program GnuPG hosted here is a free software package of the GNU Project, not a product of the GUUG e.V. We call it "Free Software" because you are free to copy and redistribute them, following the rules stated in the license of the package. For more information, see http://www.gnu.org/philosophy/free-sw.html. . If you are looking for service or support for GNU software, see http://www.gnu.org/help/gethelp.html for suggestions of where to ask. A GnuPG specific service directory is at http://www.gnupg.org/service.html . If you would like to contribute to the development of one of these packages, contact the package maintainer or the bug-reporting address of the package (which should be listed in the package itself), or look on www.gnu.org for more information on how to contribute. . More information on GnuPG can be found at http://www.gnupg.org . .