1)   Advanced Encryption Package 2006 Professional 4.8.0
AEP2008 PRO most noteworthy feature may be its flexibility and military grade encryption: program includes 17 encryption algorithms (Rijndael, TWOFISH, BLOWISH, CAST, MARS, TEA, etc) to encrypt your files. It also includes file shredder. RSA supp.

 2)   Advanced Encryption Plug-In Pro for Windows Explorer 4.0.3
AEPE lets you encrypt/decrypt/shred/make sfx files with using a power of standard Microsoft Windows Explorer's context menu! AEPE integrates into context menu and allows you to work with your important files with single mouse click.