How-To Completely Disable DEP Under Windows XP
Open "System": Start > Control Panel > System
Click the "Advanced" tab
Click "Settings" under "Startup and Recovery"
Click "Edit" under "System Startup" to open the boot.ini file in Notepad
Find the text: /noexecute=
Update "/noexecute=" to: /noexecute=AlwaysOff
Save > Close Notepad > Restart the PC
How-to Verify that DEP is Disabled
Open "System": Start > Control Panel > System
Click the "Advanced" tab
Click "Settings" under "Startup and Recovery"
The DEP settings should be unavailable

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