WINDOWS SERVICE

fdPHost: Function Discovery Provider Host

Q: How do I check that it is the real service?

On build 26300 it is registered as svchost.exe -k LocalService -p, runs as LocalService and loads C:\Windows\system32\fdPHost.dll, signed by Microsoft Windows. It depends on RpcSs and the HTTP driver.

Hosts the Function Discovery network discovery providers, which supply network discovery for the Simple Services Discovery Protocol (SSDP) and the Web Services Discovery (WS-D) protocol.

TECHNICAL SUMMARY

Service name	fdPHost
Display name	Function Discovery Provider Host
Runs from	C:\Windows\System32\svchost.exe
Command line	svchost.exe -k LocalService -p
Runs as	LocalService
Verdict	Depends on what you use
Microsoft, Windows Server 2016 guidance	No guidance

Paths, signer and service account observed on Windows 11 build 26300 on 12 November 2026. Run the commands below to check your own PC.

Should you touch it?

Depends on what you use

Microsoft states that stopping or disabling it disables network discovery for these protocols, so network services that rely on them cannot find network devices or resources. Its guidance for fixed-purpose Windows 10 and 11 IoT Enterprise devices rates it OK to disable. If you browse for devices or other PCs on your network, leave it. On the PC used for this page it was Manual and stopped.

What PC Tweaker does with it

PC Tweaker does not change this service. No control in the catalogue stops it, disables it or edits its start type.

Check it yourself

See its state and start type

Get-Service fdPHost | Format-List Name, DisplayName, Status, StartType
sc qc fdPHost

PowerShell

02
Let it start only when needed (administrator)
Note the START_TYPE that sc qc printed first, so you can put it back.
```
sc config fdPHost start= demand
```
cmd

Put it back

Use the start type you noted.

sc config fdPHost start= <auto|delayed-auto|demand>

cmd

Common questions

What is the difference between fdPHost and FDResPub?

Direction. Microsoft describes fdPHost as hosting the providers that find devices and resources on the network, and FDResPub as publishing this computer so that others can find it. On Windows 11 build 26300 FDResPub listed fdPHost as a dependency.

What does the fdPHost service do?

Hosts the Function Discovery network discovery providers, which supply network discovery for the Simple Services Discovery Protocol (SSDP) and the Web Services Discovery (WS-D) protocol. It runs C:\Windows\System32\svchost.exe (svchost.exe -k LocalService -p) as LocalService.

Can I disable fdPHost?

Depends on what you use. Microsoft states that stopping or disabling it disables network discovery for these protocols, so network services that rely on them cannot find network devices or resources. Its guidance for fixed-purpose Windows 10 and 11 IoT Enterprise devices rates it OK to disable. If you browse for devices or other PCs on your network, leave it. On the PC used for this page it was Manual and stopped.

How do I check that it is the real service?

On build 26300 it is registered as svchost.exe -k LocalService -p, runs as LocalService and loads C:\Windows\system32\fdPHost.dll, signed by Microsoft Windows. It depends on RpcSs and the HTTP driver.