Function Discovery Provider Host (fdPHost) Service Defaults in Windows 11
The FDPHOST service hosts the Function Discovery (FD) network discovery providers. These FD providers supply network discovery services for the Simple Services Discovery Protocol (SSDP) and Web Services - Discovery (WS-D) protocol. Stopping or disabling the FDPHOST service will disable network discovery for these protocols when using FD. When this service is unavailable, network services using FD and relying on these discovery protocols will be unable to find network devices or resources.
Default Settings
| Startup type: | Manual |
| Display name: | Function Discovery Provider Host |
| Service name: | fdPHost |
| Service type: | share |
| Error control: | normal |
| Object: | NT AUTHORITY\LocalService |
| Path: | %SystemRoot%\system32\svchost.exe -k LocalService -p |
| File: | %SystemRoot%\system32\fdPHost.dll |
| Registry key: | HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\fdPHost |
| Privileges: |
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Default Behavior
Function Discovery Provider Host is a Win32 service. In Windows 11 it starts only if the user, an application or another service starts it. When the Function Discovery Provider Host service is started, it logs on as NT AUTHORITY\LocalService and running in a shared process of svchost.exe. If Function Discovery Provider Host fails to start, the failure details will be recorded into Event Log. Then Windows 11 should boot up and notify the user about the fdPHost service startup failure.
Dependencies
Function Discovery Provider Host cannot be started, if the following services won't start:
If Function Discovery Provider Host doesn't work properly, the Function Discovery Resource Publication service can't start.
Restore Default Startup Configuration of Function Discovery Provider Host
Before you begin doing this, make sure that all the services on which Function Discovery Provider Host 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 fdPHost start= demand
3. Close the command window and restart the computer.
The fdPHost service is using the fdPHost.dll file that is located in the C:\Windows\system32 directory. If the file is removed or corrupted, read this article to restore its original version from Windows 11 installation media.