Still Image Acquisition Events (WiaRpc) Service Defaults in Windows 8

Launches applications associated with still image acquisition events.

Default Settings

Startup type:Manual
Display name:Still Image Acquisition Events
Service name:WiaRpc
Service type:share
Error control:normal
Object:LocalSystem
Path:%SystemRoot%\system32\svchost.exe -k LocalSystemNetworkRestricted
File:%SystemRoot%\System32\wiarpc.dll
Registry key:HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\WiaRpc
Privileges:
  • SeImpersonatePrivilege

Default Behavior

Still Image Acquisition Events is a Win32 service. In Windows 8 it will not be started until the user starts it. When the Still Image Acquisition Events service is started, it runs as LocalSystem in a process of svchost.exe, sharing it with other services. If Still Image Acquisition Events fails to start, the error details are added to Windows 8 error log. When the operating system startup is complete, the user is being notified that the WiaRpc service hasn't been started.

Dependencies

Still Image Acquisition Events can't start, if the Remote Procedure Call (RPC) service is disabled or not available.

Restore Default Startup Configuration for Still Image Acquisition Events

Before you begin doing this, make sure that all the services on which Still Image Acquisition Events depends are configured by default and function properly. See the list of dependencies above.

1. Run the Command Prompt as an administrator.

2. Copy the command below, paste it into the command window and press ENTER:

sc config WiaRpc start= demand

3. Close the command window and restart the computer.

The WiaRpc service is using the wiarpc.dll file that is located in the %WinDir%\System32 folder. If the file is corrupted or deleted, you can put it back in there.