Problem with Uninstalling Paint .NET

Some days back I downloaded paint.net on my computer system. However, to download paint.net, it was required for me to download framework 2.0 first. I am done with my job, therefore I wished to install paint.net.
For this purpose, I uninstalled .net framework 2.0 first and then tried to uninstall paint.net.
However this process popped an error on my screen which reads as:

There is a problem with the windows Installer Package. A program run as part of the setup did not finish as expected. Contact your support personnel or package vendor. I would be really obliged if someone would be kind enough to suggest a solution of my problem.
