The ChilkatZip Self-Extractor can safely encrypt the contents of your ZIP file with 128, 192, or 256-bit AES Encryption. To unzip, a user must provide the same password that was used when creating the self-extracting EXE. AES encryption is much stronger than standard ZIP encryption, which is regarded by security experts as being insecure. Chilkat's streaming compression and encryption technology allows the ChilkatZip Self-Extractor to create an EXE from any size ZIP file. The streaming compression and decryption technology also ensures that it will be possible to unzip the archive on your end-user's computer, even if that computer has very little memory. A progress bar is displayed during the unzip process so your end-user can decide whether there is time to get a cup of coffee while his computer is unzipping an especially large ZIP file.
Editor's review of Chilkat ZIP 2 Secure EXE

Not that much different from your current ZIP extractor, this clever application converts encrypted ZIP files into self-extracting files. Chilkat ZIP 2 Secure EXE's simply-designed interface offers the generic Windows appeal, though it is comprehensible for beginners. Upon selection of the compressed file, the program quickly converts the file into a self-extracting executable file and immediately applies your selected encryption algorithm. You can choose from 128-, 192-, and 256-bit AES-based encryption algorithms for stronger protection and include passwords to unlock them. Simply double-click the executable and insert your password if you opted to use one, and a file is instantly created in the destination spot of your choice.

Chilkat ZIP 2 Secure EXE doesn't offer much more than the standard extractor, although we like that you can e-mail your EXEs to colleagues. For those looking for an easy way of managing ZIP files and private information, this free program will do the job.