Although the name is misleading, VistaTask has nothing to do with Windows Vista. The developer says the name "Vista" was incorporated over 10 years ago, and is not related to or affiliated with Microsoft Windows Vista. VistaTask basically provides advanced automation for Microsoft Windows controlling every aspect of your computer, such as the mouse, keyboard, and web surfing without the need to write any programming code.
VistaTask could be useful in a number of scenarios such as software quality assurance testing, IT administration jobs, repetitive data entry, program installations, or recurring internet tasks. It offers simple Windows automation, while still providing enterprise-level features such as data-driven models, low-level Win32 API access, and image masking.
As far as automation of tasks go, this is one of the easiest programs I've used taking just a few clicks to make the most complicated automations.