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KB85648
PAC Display may not start on some Windows PCs
Revision:  2.0
Published:  4/7/2016
Applies To
PAC Display Basic
PAC Display Professional
Versions
Problem affects versions:  
All versions
Problem is fixed in version:  
R9.5a

SYMPTOMS

When you open PAC Display (Configurator or Runtime), you see the splash screen, and then the application disappears. There is no indication from Windows that the application stopped or was terminated; no dialog box, and no message in the Windows Event Log.

Cause: Windows includes a security feature called Data Execution Prevention (DEP). On newer Windows PCs this feature may be enabled for all applications by default, or you may have chosen to enable it for all applications. If it is, it will prevent PAC Display from opening.

WORKAROUND

You can disable DEP for non-Windows applications, or enable DEP exceptions for PAC Display.

  1. Right-click My Computer > Properties and select Advanced System Settings. Or press the Windows key, start typing Advanced System Settings, and click it.
  2. In the Advanced tab, under Performance, select Settings.
  3. Click the Data Execution Prevention tab.
  4. First try selecting just the top setting (essential Windows Programs and Services Only).
  5. If this does not work, select the second option to add an exception. Click the Add button.
  6. Navigate to the folder where PAC Project was installed.
  7. Add any or all of the following, depending on whether you're using PAC Display Basic, PAC Display Professional, or both:
  • DisplayC.pro.exe
  • DisplayR.pro.exe
  • DisplayX.pro.exe
  • DisplayC.basic.exe
  • DisplayR.basic.exe
  • DisplayX.basic.exe

RESOLUTION

Opto 22 has resolved this issue.

Relevant Downloads
No relevant downloads have been specified.
Questions? Contact Opto 22 Product Support.
Phone: 800-835-6786 or 951-695-3080
Email: support@opto22.com

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This Opto 22 Knowledge Base ('OptoKB') article is intended to provide general technical information on a particular subject or subjects and is not an exhaustive treatment of such subjects. Accordingly, the information in this OptoKB article is not intended to constitute application, design, software, or other professional engineering advice or services. Opto 22 may modify the OptoKB articles at any time. Before making any decision or taking any action which might affect your equipment, you should consult a qualified professional.

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