Memory protection SP2 provides for DEP (data execution prevention), where areas of system memory, such as those in which data is meant to reside, are marked as nonexecutable. This should help prevent buffer overrun attacks.Next page: Wi-Fi and Bluetooth.
DEP in SP2 is enforced by hardware, requiring an Advanced Micro Devices Inc. processor with no-execute page protection or an Intel Corp. chip with the Execute Disable bit feature. SP2 also provides for software enforcement of DEP in core Windows XP code. Administrators can shut off DEP in Windows on a systemwide or per-application basis.