Detect application failures caused by deprecated Windows DLLs

This policy setting determines whether the Program Compatibility Assistant (PCA) will diagnose DLL load failures in programs.

If you enable this policy setting, the PCA detects programs trying load legacy Microsoft Windows DLLs that are removed in this version of Windows. When this failure is detected, after the program is terminated, PCA will notify the user about this problem and provide an option to check the Microsoft Web site for solutions.

If you disable this policy setting, the PCA does not detect programs trying to load legacy Windows DLLs.

If you do not configure this policy setting, the PCA detects programs trying to load legacy Windows DLLs.

Note: Disabling the "Turn off Program Compatibility Assistant" policy setting will cause this policy setting to have no effect. The Diagnostic Policy Service (DPS) and Program Compatibility Assistant Service must be running for the PCA to execute. These services can be configured using the Services snap-in to the Microsoft Management Console.


Supported on: At least Windows Vista
Registry HiveHKEY_LOCAL_MACHINE
Registry PathSOFTWARE\Policies\Microsoft\Windows\WDI\{659F08FB-2FAB-42a7-BD4F-566CFA528769}
Value NameScenarioExecutionEnabled
Value TypeREG_DWORD
Enabled Value1
Disabled Value0

Scenario Execution Level


  1. Detection and Troubleshooting Only
    Registry HiveHKEY_LOCAL_MACHINE
    Registry PathSOFTWARE\Policies\Microsoft\Windows\WDI\{659F08FB-2FAB-42a7-BD4F-566CFA528769}
    Value NameEnabledScenarioExecutionLevel
    Value TypeREG_DWORD
    Value1
  2. Detection, Troubleshooting and Resolution
    Registry HiveHKEY_LOCAL_MACHINE
    Registry PathSOFTWARE\Policies\Microsoft\Windows\WDI\{659F08FB-2FAB-42a7-BD4F-566CFA528769}
    Value NameEnabledScenarioExecutionLevel
    Value TypeREG_DWORD
    Value2


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