bxAutoZip for Outlook - A dedicated Outlook Add-In which automatically compresses any attachments.
CoffeeCup Free Zip Wizard - This is a great compression tool with built in Email, Zip, and FTP functions.
7-Zip - 7-Zip is a file archiver with the highest compression ratio.
Absolute Packager - Create sharp Self-Extracting Zip files (.EXE) quickly and easily
Advanced Archive Password Recovery - Recover lost or forgotten passwords to ZIP, ARJ, RAR and ACE archives.
Advanced Encryption Plug-In for Windows Explorer - Encrypt/decrypt/shred/make sfx .exe/work with .ZIP from Windows context menu
ZipScan - Searches archive files. Supports Zip, CAB, RAR, ACE, InstallShield CAB, JAR.
ZipWrangler - Create, extract, view contents of and launch from ZIP, CAB and LOK archives
Simplyzip - Simpylzip is a multi archiver program for many archives
Smart SFX Pro - Hight Quality Self Extractor - Quick Installer - Secure Files Packager.