Sample application error on Windows XP

Hi,
After I have updated my Windows XP this error appeared on my desktop for no reason. I have to press the Don’t Send button to continue. I don’t know what is causing this error and I was hoping that one of you experts will help me. Is there a solution for my error ? What should I do ?
Thank you !

Sample Application
Sample application has encountered a problem and needs to close. We are sorry for the inconvenience.
The information you were working on might be lost. Sample Application can try to recover it for you.
Recover my work restart Sample Application
Please tell Microsoft about this problem.
We have created an error report that you can send to help us improve Sample Application.
We will treat this report as confidential and anonymous.
