How to Add Encrypt and Decrypt to the Context Menu in Vista

<body> <center>Sorry you do not have frames enabled. Here is the link of the tutorial:<br> <a href="http://www.vistax64.com/tutorials/100031-context-menu-add-encrypt-decrypt.html">http://www.vistax64.com/tutorials/100031-context-menu-add-encrypt-decrypt.html</a></center> </body>