batcmd.com Windows 7 Services

Wired AutoConfig - Windows 7 Service

The Wired AutoConfig (DOT3SVC) service is responsible for performing IEEE 802.1X authentication on Ethernet interfaces. If your current wired network deployment enforces 802.1X authentication, the DOT3SVC service should be configured to run for establishing Layer 2 connectivity and/or providing access to network resources. Wired networks that do not enforce 802.1X authentication are unaffected by the DOT3SVC service.

This service also exists in Windows 10, 8, Vista and XP.

Startup Type

Windows 7 edition without SP SP1
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Default Properties

Display name:Wired AutoConfig
Service name:dot3svc
Type:share
Path:%WinDir%\system32\svchost.exe -k LocalSystemNetworkRestricted
File:%WinDir%\System32\dot3svc.dll
Error control:normal
Group:TDI
Object:localSystem
Privileges:
  • SeChangeNotifyPrivilege
  • SeImpersonatePrivilege
  • SeAuditPrivilege
  • SeTcbPrivilege

Default Behavior

The Wired AutoConfig service runs as localSystem in a shared process. It shares an executable file with other services. If the Wired AutoConfig fails to load or initialize, the error is recorded into the Event Log. Windows 7 startup should proceed, but a message box is displayed informing you that the dot3svc service has failed to start.

Dependencies

Wired AutoConfig will not start, if the following services are stopped or disabled:

Restore Default Startup Type for Wired AutoConfig

Automated Restore

1. Select your Windows 7 edition and Service Pack, and then click on the Download button below.

2. Save the RestoreWiredAutoConfigWindows7.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 to save changes.

Note. Make sure that the dot3svc.dll file exists in the %WinDir%\System32 folder. If this file is missing you can try to restore it from your Windows 7 installation media.