WinHTTP Web Proxy Auto-Discovery Service - Windows 11 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, 7, 8 and Vista.
Startup Type
| Windows 11 version | Home | Pro | Education | Enterprise |
|---|---|---|---|---|
| 21H2 | Manual | Manual | Manual | Manual |
| 22H2 | Manual | Manual | Manual | Manual |
| 23H2 | Manual | Manual | Manual | Manual |
| 24H2 | Manual | Manual | Manual | Manual |
| 25H2 | Manual | Manual | Manual | Manual |
| 26H1 | Manual | Manual | Manual | Manual |
Default Properties
| Display name: | WinHTTP Web Proxy Auto-Discovery Service |
| Service name: | WinHttpAutoProxySvc |
| Type: | own |
| Path: | %WinDir%\system32\svchost.exe -k LocalServiceHttp -p |
| File: | %WinDir%\system32\winhttp.dll |
| Error control: | normal |
| Object: | NT AUTHORITY\LocalService |
| Privileges: |
|
Default Behavior
The WinHTTP Web Proxy Auto-Discovery Service is running as NT AUTHORITY\LocalService in its own process of svchost.exe. No other services run in the same process. If WinHTTP Web Proxy Auto-Discovery Service fails to start, the error is logged. Windows 11 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 is unable to start, if at least one of the following services is stopped or disabled:
If WinHTTP Web Proxy Auto-Discovery Service is stopped, the following services cannot start:
Restore Default Startup Type for WinHTTP Web Proxy Auto-Discovery Service
Automated Restore
1. Select your Windows 11 edition and release, and then click on the Download button below.
2. Save the RestoreWinHTTPWebProxyAutoDiscoveryServiceWindows11.bat file to any folder on a local drive such as SSD or a hard disk.
3. Right-click the downloaded batch file and select Properties.
4. Check the Unblock checkbox and click OK.
5. Right-click the batch file again and select Run as administrator.
6. Restart the computer to save changes.
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 11 installation media.