Windows Vista Services

Ancilliary Function Driver for Winsock - Windows Vista Service

Ancilliary Function Driver for Winsock.

This service also exists in Windows 10, 7, 8 and XP.

Startup Type

Windows Vista edition without SP SP1 SP2
Starter System System System
Home Basic System System System
Home Premium System System System
Business System System System
Ultimate System System System

Default Properties

Display name:Ancilliary Function Driver for Winsock
Service name:AFD
Error control:normal

Default Behavior

The Ancilliary Function Driver for Winsock service is a kernel mode driver. If Ancilliary Function Driver for Winsock fails to start, the error is recorded into the Event Log. Windows Vista startup proceeds, but a message box is displayed informing you that the AFD service has failed to start. If you disable this service, then 2 other services will be unable to start (see the "Dependencies" section below).


If the Ancilliary Function Driver for Winsock is stopped, the following services will not start and initialize:

Restore Default Startup Type of Ancilliary Function Driver for Winsock

Automated Restore

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

2. Save the RestoreAncilliaryFunctionDriverforWinsockWindowsVista.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 afd.sys file exists in the %WinDir%\system32\drivers folder. If this file is missing you can try to restore it from your Windows Vista installation media.

Yea, though I walk through the valley of the shadow of death, I will fear no evil: for thou art with me; thy rod and thy staff they comfort me.