VistaSwitcher is a program that allows to change windows in Windows, as with the traditional method (consisting of the combination of the Alt and Tab keys), but more visually, since instead of displaying the icons, a Small capture of each of the windows that can be accessed.
For those of us who know this quick way to change windows, you can test it (before installing VistaSwitcher) by holding down the Alt key and then with Tab (Tab) select one of the icons that represent the applications that are running.
The effect of this application is similar to the one of Flip3D of Windows Vista, but now it can be incorporated into Windows XP, and also to Windows 7.
The application allows you to customize some aspects, such as on-screen positioning, layout, degree of transparency and other parameters. It consumes very few resources so it should not slow down the PC.
VistaSwitcher 1.1.5 is the latest version (updated in May 2012) of this utility that can be downloaded free for all versions of Windows (both 32-bit and 64-bit).