Most if not all encryption programs allow you to do so--they vary, however, in terms of how difficult the process is.
Advanced Encryption Package 2007 Professional is a program that has the ability to work with .zip archives.
AEP PRO's most noteworthy feature may be its flexibility: Not only can you encrypt files for your own protection but you can easily create "self-decrypting" versions of your files that others can run without needing AEP PRO or any other software.
Advanced Encryption Package includes a file shredder that wipes the contents of your original files. It also integrates nicely with Windows Explorer, allowing you to use Explorer's context menus and avoid having another window clutter your screen. It also uses military grade encryption for protecting your private files.
Advanced Encryption Package 2007 Professional includes 17 undustrial encryption algorithms: DESX, BLOWFISH, RIJNDAEL(AES), CAST, 3-DES, RC2, DIAMOND2, TEA, SAFER, 3-WAY, GOST, SHARK, SQUARE, SKIPJACK, TWOFISH, MARS, SERPENT. AEP2002 PRO
supports skins technology and has 10 nice additional skins!
Moreover program has full support for ZIP files! I.e. ability to add files into .ZIP file, browse and extract contents from .ZIP file. Compression rate is better than WinZip's one! Plus Complete support for Command Line Interface.
Here are some key features of "Advanced Encryption Package Professional":
· Using 17 symmetric encryption algorithms to encrypt your data: DESX, BLOWFISH, RIJNDAEL(AES), CAST, 3-DES, RC2, DIAMOND2, TEA, SAFER, 3-WAY, GOST, SHARK, SQUARE, SKIPJACK, TWOFISH, MARS, SERPENT.
· Making self-extracting encrypted executable files to send it via e-mail to people who do not have AEP2007
· Built in file shredder - i.e. wiping the contents of the original pre-encrypted file beyond recovery to make sure that not even a trace remains after shredding. matching and exceeding the specifications of the U.S. Department of Defence) to stop hardware recovery tools.
· Support for USB Flash Drives to store encryption keys. All your secret passwords are always with you in...

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