SSDP Discovery - Windows Vista Service
Discovers networked devices and services that use the SSDP discovery protocol, such as UPnP devices. Also announces SSDP devices and services running on the local computer. If this service is stopped, SSDP-based devices will not be discovered. If this service is disabled, any services that explicitly depend on it will fail to start.
This service also exists in Windows 10, 11, 7, 8 and XP.
Startup Type
| Windows Vista edition | without SP | SP1 | SP2 |
|---|---|---|---|
| Starter | Manual | Manual | Manual |
| Home Basic | Manual | Manual | Manual |
| Home Premium | Manual | Manual | Manual |
| Business | Manual | Manual | Manual |
| Ultimate | Manual | Manual | Manual |
Default Properties
| Display name: | SSDP Discovery |
| Service name: | SSDPSRV |
| Type: | share |
| Path: | %WinDir%\system32\svchost.exe -k LocalService |
| File: | %WinDir%\System32\ssdpsrv.dll |
| Error control: | normal |
| Object: | NT AUTHORITY\LocalService |
| Privileges: |
|
Default Behavior
The SSDP Discovery service starts as NT AUTHORITY\LocalService and runs in a shared process of svchost.exe. If SSDP Discovery fails to start, the error is recorded into the Event Log. Windows Vista startup proceeds, but a message box is displayed informing you that the SSDPSRV service has failed to start. If you disable this service, then 2 other services will be unable to start (see the "Dependencies" section below).
Dependencies
SSDP Discovery will not start, if the HTTP service is stopped or disabled.
If the SSDP Discovery is stopped, the following services will not start and initialize:
Restore Default Startup Type of SSDP Discovery
Automated Restore
1. Select your Windows Vista edition and Service Pack, and then click on the Download button below.
2. Save the RestoreSSDPDiscoveryWindowsVista.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 to save changes.
Note. Make sure that the ssdpsrv.dll file exists in the %WinDir%\System32 folder. If this file is missing you can try to restore it from your Windows Vista installation media.