Nymithium Technologies - (Freeware)
With its unique options, Alt-Tab Thingy is a great software that helps to switch fast between applications.
Alt-Tab Thingy allows user to juggle his many applications and open with the simple combination of Alt and Tab keys windows. The program interface displays a thumbnail of the selected item and user just needs to validate the actual display of the program by typing the Enter key. Many customization tools are available such as the appearance of the name of the window and, especially, a preview of this one, to navigate more easily.
It also has the ability to scroll windows with the mouse wheel, in addition to repeatedly pressing Tab.
Alt -Tab Thingy offers many tips to include move a window by clicking anywhere in this one, display a window to the foreground and transparency, establishing a blacklist applications that you do not want to appear in the list of windows or minimize or close some windows after a certain period of inactivity.
Added support for Windows Vista & Windows 7.