…has the most comprehensive knowledge of auto-starting locations of any startup monitor, shows you what programs are configured to run during system bootup or login, and shows you the entries in the order Windows processes them.
It has a convenient feature that allows you to search google for a process it lists. I’ve been using it for years, including many of their other low-level utilities such as Process Explorer.
One of the developers also has an excellent blog where he often describes the inner workings and faults of Windows.
