Top 3 Free Product Key Finder Programs

If you’re preparing to reinstall an operating system (for example, doing a clean install of Windows XP) or an application like Microsoft Office, you will need to find your copy of the software’s product key (CD key). Normally this product key is located with the manual or CD that came with your software.
If you’ve lost your product key you can often times find it in the registry but this can be very difficult to impossible to retrieve manually. Luckily, there are many free key finder programs available to help.
Below are the top 3 free key finder programs.

more and source:http://pcsupport.about.com/od/productkeysactivation/tp/topkeyfinder.htm

How To Find the Windows Vista Product Key Code

If you’re preparing to reinstall Windows Vista you’ll need to locate your copy of the Windows Vista product key. Normally this product key is on a sticker on your computer or located with the Windows Vista product manual.
If you’ve lost your product key, it’s located in the registry but is encrypted and not readable, making finding it difficult. The key was not encrypted in previous versions of Windows like Windows 98.
Follow the steps below to locate your Windows Vista product key code.

Difficulty: Easy
Time Required: Less than 15 minutes
Here’s How: souece and more:http://pcsupport.about.com/od/tipstricks/ht/findvistakey.htm