In July 2010 Kowshik reviewed about Wondershare Time Freeze 2.0
The software is in now v2.0.3 and costs $39.
I have personally used Wondershare Time Freeze and found it light but effective virtualization solution. Moreover it does not require a restart to move from visualized OS to Real OS.
Here is an user guide to use Wondershare Time Freeze
Anyway Wondershare is currently giving away free licenses of Wondershare Time Freeze v2.0 until Jan. 30th, 2011 in collaboration with Il Mio Computer/Computer Magazine. To be grab free license go to the promo page.
Fill in the form and press “Get it Now” button.
You will soon receive the license from [email protected].com with the license. Download the software and register it with that license. Note that with these license you can update the software within v2.0 but cannot upgrade to upcoming v3.0.