Virtorio Address Book is a freeware address book program. It has a simple interface and has its own unique interface.

Changes in Current Version:
Fixed several installer bugs
Fixed a problem with the Virtorio Web Link control
Various optimizations in the Virtorio Address Book DLL File
Minor graphical bugs fixed
Fixed important memory leak
New Emergency restore tool
Lots of other fixes and improvements

More info:
hxxp://www.virtorio.cjb.net/addressbook.html