batcmd.com Windows 8 Services

Program Compatibility Assistant Service - Windows 8 Service

This service provides support for the Program Compatibility Assistant (PCA). PCA monitors programs installed and run by the user and detects known compatibility problems. If this service is stopped, PCA will not function properly.

This service also exists in Windows 10, 7 and Vista.

Startup Type

Windows 8 edition Windows 8 Windows 8.1 Windows 8.1 Update 1
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Enterprise Manual Manual Manual

Default Properties

Display name:Program Compatibility Assistant Service
Service name:PcaSvc
Type:share
Path:%WinDir%\system32\svchost.exe -k LocalSystemNetworkRestricted
File:%WinDir%\System32\pcasvc.dll
Error control:normal
Object:LocalSystem
Privileges:
  • SeDebugPrivilege

Default Behavior

The Program Compatibility Assistant Service runs as LocalSystem in a shared process of svchost.exe. Other services might run in the same process. If Program Compatibility Assistant Service fails to start, the error is logged. Windows 8 startup proceeds, but a message box is displayed informing you that the PcaSvc service has failed to start.

Dependencies

Program Compatibility Assistant Service won't start, if the Remote Procedure Call (RPC) service is stopped or disabled.

Restore Default Startup Type for Program Compatibility Assistant Service

Automated Restore

1. Select your Windows 8 release and edition, and then click on the Download button below.

2. Save the RestoreProgramCompatibilityAssistantServiceWindows8.bat file to any folder on your hard drive.

3. Right-click the downloaded batch file and select Run as administrator.

4. Restart the computer.

Note. Make sure that the pcasvc.dll file exists in the %WinDir%\System32 folder. If this file is missing you can try to restore it from your Windows 8 installation media.