Turn on DEP for added protection for your computer.
Note: DEP is available in Windows XP Service Pack 2(SP2) OnlyFollow This Step to check whether DEP is turned on:
1. Click on start

Control Panel

Performance and Maintenance

System.
2.

3.Click on the "Advanced" Tab, Under the "performance" section click on "Settings"

4.Click on "Data Execution Prevention" Tab.
