WinAce is not just another archiving shell. With it's own powerful compression format ACE and built-in support for other popular compression types like ZIP, RAR and MS-CAB (to name a few), WinAce could actually become the only archiver you need.
The feature list of WinAce includes:

• compression of the following formats: ACE, ZIP, LHA, MS-CAB, JAVA JAR
• decompression of: ACE, ZIP, LHA, MS-CAB, RAR, ARC, ARJ, GZip, TAR, ZOO, JAR
• multi-volume (disk spanning) archives for ACE, ZIP, CAB
• self-extracting archives (SFX) for ACE and ZIP
• password encryption & recovery records for data protection
• Integrity check for ACE, ZIP, LHA, MS-CAB, RAR, ARC, ARJ, GZip, TAR, ZOO, JAR
• Repair functionality for ACE and ZIP archives
• Authenticity verification for ACE archives
• comment files in HTML, ANSI or ASCII for ACE- and ZIP-Archives
• full command line access (compatible with DOS ACE)
• detailed information for all archive types
• Quickviewer for graphic files, Word Documents, HTML pages and ASCII files
• full drag&drop support
• complete file-management (copying, moving and deleting of files and directories)
• optimization of existing archives
• access to your archives in Windows Explorer and via the context menu (shell extension)
• table of contents in the "Properties" panel of ACE and ZIP files (shell extension)
• ... and so much more!