Vista compatibility, faster start-up time, pop-up help everywhere...
New in v4.x:
Full Windows Vista support, faster start-up time, improved presentation / layout, pop-up help everywhere, various other enhancements and fixes for earlier releases;
Release Notes - Last Updated: 05.30.08 (v4.62)
Pros: Provides detailed and specific information and recommendations on countless Windows and third-party processes
Cons: Incomplete information on Windows services, questionable flagging for some well-known processes, trial download is a limited-function/limited-use release, somewhat pricey at $35
