WinHTTP Web Proxy Auto-Discovery Service - Windows 8 Service
WinHTTP implements the client HTTP stack and provides developers with a Win32 API and COM Automation component for sending HTTP requests and receiving responses. In addition, WinHTTP provides support for auto-discovering a proxy configuration via its implementation of the Web Proxy Auto-Discovery (WPAD) protocol.
This service also exists in Windows 10, 11, 7 and Vista.
Startup Type
| Windows 8 edition | Windows 8 | Windows 8.1 | Windows 8.1 Update 1 |
|---|---|---|---|
| Core | Manual | Manual | Manual |
| Pro | Manual | Manual | Manual |
| Enterprise | Manual | Manual | Manual |
Default Properties
| Display name: | WinHTTP Web Proxy Auto-Discovery Service |
| Service name: | WinHttpAutoProxySvc |
| Type: | share |
| Path: | %WinDir%\system32\svchost.exe -k LocalService |
| File: | %WinDir%\system32\winhttp.dll |
| Error control: | normal |
| Object: | NT AUTHORITY\LocalService |
| Privileges: |
|
Default Behavior
The WinHTTP Web Proxy Auto-Discovery Service runs as NT AUTHORITY\LocalService in a shared process of svchost.exe. Other services might run in the same process. If WinHTTP Web Proxy Auto-Discovery Service fails to start, the error is logged. Windows 8 startup proceeds, but a message box is displayed informing you that the WinHttpAutoProxySvc service has failed to start.
Dependencies
WinHTTP Web Proxy Auto-Discovery Service won't start, if the DHCP Client service is stopped or disabled.
Restore Default Startup Type of WinHTTP Web Proxy Auto-Discovery Service
Automated Restore
1. Select your Windows 8 release and edition, and then click on the Download button below.
2. Save the RestoreWinHTTPWebProxyAutoDiscoveryServiceWindows8.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 winhttp.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.