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DEP Help Documentation

Introduction

Data Execution Prevention (DEP) is a set of hardware and software-enforced technologies implemented (with support from Intel/AMD) in Microsoft Windows XP Service Pack 2 (SP2) and Windows Vista. It helps protect your computer against the insertion of malicious code into areas of computer memory reserved for non-executable code. Hardware-enforced DEP is a feature of certain processors (i.e. 'XD' on Intel and 'NX' on AMD CPU's) that prevents the execution of code in memory regions that are marked as data storage. Windows XP SP2 also includes software-enforced DEP that is designed to reduce exploits of exception handling mechanisms in Windows. DEP may cause Telus Games On Demand to behave unexpectedly including program crashes.

Before You Begin

Note: Hardware-enforced DEP relies on processor hardware to mark memory with an attribute that indicates that code should not be executed from that memory. Hardware-enforced DEP is enabled by default on computers with DEP compatible processors that run Microsoft Windows XP 64-Bit Edition. An additional set of DEP security checks have been added to Windows XP SP2. These checks, known as software-enforced DEP, are running on any processor that can run Windows XP SP2. By default, software-enforced DEP helps protect only limited system binaries, regardless of the hardware-enforced DEP capabilities of the processor.

For more information regarding DEP, please visit the link here.

Credentials: You must log on to your computer using an account with local Administrator rights.

Disable DEP for all programs on your computer

For Windows XP users:
  1. Right click My Computer from either Start menu or your desktop, and then click Properties.
  2. Under System Properties window, click the Advanced tab.
  3. In the Performance area, click Settings button.
  4. Click the Data Execution Prevention tab.
  5. Make sure you select Turn on DEP for essential Windows programs and services only radio button.
  6. Click OK. A dialogue box may appear and inform you that you must restart your computer for the setting to take effect. Click OK.
  7. Restart your computer if necessary.
For Windows Vista users:
  1. Right click My Computer from either Start menu or your desktop, and then click Properties.
  2. Under Tasks window, click the Advanced system settings tab.
  3. Click Continue button.
  4. In the Performance area, click Settings... button.
  5. Click the Data Execution Prevention tab.
  6. Make sure you select Turn on DEP for essential Windows programs and services only radio button.
  7. Click OK. A dialogue box may appear and inform you that you must restart your computer for the setting to take effect. Click OK.
  8. Restart your computer if necessary.

Add Telus Games Player to the DEP exception list

For Windows XP users:

Note: The DEP exception list functionality is only available if the DEP configuration is set to protect all programs and services. If you configure your computer to protect only essential Windows components and services, the exception list is unavailable.

  1. Right click My Computer from either Start menu or your desktop, and then click Properties.
  2. Under System Properties window, click the Advanced tab.
  3. In the Performance area, click Settings button.
  4. Click the Data Execution Prevention tab.
  5. Make sure you select Turn on DEP for all programs and services except those I select: radio button.
  6. Click Add... button.
  7. Locate and select the TELUS Games Player application usually found at "C:\Program Files\TELUS Games On Demand\TELUSGamesPlayer.exe", and click Open.
  8. Click OK. A dialogue box appears and informs you that you must restart your computer for the setting to take effect. Click OK.
  9. Restart your computer.
For Windows Vista users:
  1. Right click My Computer from either Start menu or your desktop, and then click Properties.
  2. Under Tasks window, click the Advanced system settings tab.
  3. Click Continue button.
  4. In the Performance area, click Settings... button.
  5. Click the Data Execution Prevention tab.
  6. Make sure you select Turn on DEP for all programs and services except thos I select: radio button.
  7. Click Add... button.
  8. Locate and select the TELUS Games Player application usually found at "C:\Program Files\TELUS Games On Demand\TELUSGamesPlayer.exe", and click Open.
  9. Click OK. A dialogue box appears and informs you that you must restart your computer for the setting to take effect. Click OK.
  10. Restart your computer.

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