I use WinAce as well, and I like it a lot.
And I use <A HREF="http://www.ghisler.com/">Windows Commander </A>, a brilliant Windows Explorer replacement, which, among other things, offers built-in archive handling:
Archive handling:
Archives are handled like subdirectories. You can easily copy files to and from archives.
The appropriate archiving program is automatically called.
pkzip, arj, lha, rar, ace and uc2 are all supported.
Built-in ZIP-compatible packer, supports long filenames! This packer is based on ZLIB by Info-Zip.
Internal unpackers for ZIP, ARJ, LZH, TAR, GZ, CAB, RAR and ACE formats.
Additional packers can be added as plugins. See addons page.
Pack large archives in the background (separate thread).
Copy files directly from one archive to another.
Grtz.