Features include,
Optimized and highly configurable for taking lots of screenshots with minimal intervention
Smart autonaming of files, and ability to embed textual comments in files
Good multi-monitor support
Capture modes include Multimon (multiple monitors), Desktop, Active Window, Region, Windows Object with Hotkey for quick access
Unique Cool Effects, including automatic active window enhancement (see pictures below)
Support for 3rd party user configurable tools, including file browsers and image editors; extend the program to do whatever you need by interfacing it with other programs.
Slimline sidebar file browser provides full shell operations
Optional automatic image file versioning
Seamless integration with Unicode Image Maker tool
Automatically finds boundaries of non-rectangular/themed windows
Autoscroll capture for windows too big for screen.
Deluxe thumbnail maker.
Quick PostCapture PopUp Dialog
Quick Screenshot Emailer Menu
Screenshot Captor should just work fine on Windows Vista, Windows XP and earlier versions of Windows. Click here to download Screenshot Captor. Hosted at Donationcoder.com, once downloaded, you need to register at DonationCoder.com and generate a free License Key for the software. This one time registration gives you access to any software that you download from there.