Function Discovery Provider Host (fdPHost) Service Defaults in Windows 8

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
Registry key:HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\fdPHost
  • SeChangeNotifyPrivilege
  • SeImpersonatePrivilege

Default Behavior

Function Discovery Provider Host is a Win32 service. In Windows 8 it will not be started until the user starts it. When the Function Discovery Provider Host service is started, it runs as NT AUTHORITY\LocalService in a process of svchost.exe, sharing it with other services. If Function Discovery Provider Host fails to start, the error details are added to Windows 8 error log. When the operating system startup is complete, the user is being notified that the fdPHost service hasn't been started.


Function Discovery Provider Host can't start, if any service from the list below is disabled or not available:

If Function Discovery Provider Host is disabled, the HomeGroup Provider service will not be started and initialized.

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 8 installation media.