• usability10
• Stability10
• Installation9
• Functionality10
• Appearance10

This is an amazing piece of software. It's one most would gladly pay for. It not only offers a replacement to Windows Viewer but it also adds in the ability to play certain videos as well as a way to make your own custom screen saver. With all the malware around, it's nice to know you can now make your own screen saver with your own pictures and never have to worry about getting malware from other screen savers again. Picasa also features a slide show and the ability to make collages. Another great feature is the ability to share your photos. This program will do what you expect and more and it's completely free.