Telephony - Windows 7 Service
Provides Telephony API (TAPI) support for programs that control telephony devices on the local computer and, through the LAN, on servers that are also running the service.
This service also exists in Windows 10, 11, 8, Vista and XP.
Startup Type
| Windows 7 edition | without SP | SP1 |
|---|---|---|
| Starter | Manual | Manual |
| Home Basic | Manual | Manual |
| Home Premium | Manual | Manual |
| Professional | Manual | Manual |
| Ultimate | Manual | Manual |
| Enterprise | Manual | Manual |
Default Properties
| Display name: | Telephony |
| Service name: | TapiSrv |
| Type: | share |
| Path: | %WinDir%\System32\svchost.exe -k NetworkService |
| File: | %WinDir%\System32\tapisrv.dll |
| Error control: | normal |
| Object: | NT AUTHORITY\NetworkService |
| Privileges: |
|
Default Behavior
The Telephony service runs as NT AUTHORITY\NetworkService in a shared process. It shares the executable file with other services. If the Telephony fails to load or initialize, the error is recorded into the Event Log. Windows 7 startup should proceed, but a message box is displayed informing you that the TapiSrv service has failed to start.
Dependencies
Telephony will not start, if the following services are stopped or disabled:
If the Telephony is stopped, the following services will not start and initialize:
Restore Default Startup Type of Telephony
Automated Restore
1. Select your Windows 7 edition and Service Pack, and then click on the Download button below.
2. Save the RestoreTelephonyWindows7.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 tapisrv.dll file exists in the %WinDir%\System32 folder. If this file is missing you can try to restore it from your Windows 7 installation media.