Zip Assistant is a vanilla Win32 archive program, which appears to be slanted towards the novice user who might need a bit of handholding. The web page does say that advanced users will appreciate some features as well, and the feature list does include disk spanning, SFX files, and more.

Version 4.6 is shipping as of April, 2003.

http://www.jgraff.addr.com/zip32.htm