KB973039 – Active Directory Could Allow Denial of ServiceKB969947 – Windows Kernel-Mode Drivers Could Allow Remote Code Execution
On November 2009 Microsoft released just two updates for Windows XP. the first protects user for DOS Attack and second fixes problem in core kernel Mode Driver
Check the complete list of Windows XP updates and patches released by Microsoft in year 2009
Download and install Windows XP Service Pack 3 for better security.