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.
|Windows Vista edition||without SP||SP1||SP2|
|Path:||%WinDir%\System32\svchost.exe -k NetworkService|
Telephony logs on as NT AUTHORITY\NetworkService and runs in a shared process of svchost.exe. If Telephony 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 TapiSrv service has failed to start. If you disable this service, then 3 other services will be unable to start (see the "Dependencies" section below).
Telephony won't start, if the following system components are stopped or disabled:
If the Telephony is stopped, the following services will not start and initialize:
1. Select your Windows Vista edition and Service Pack, and then click on the Download button below.
2. Save the RestoreTelephonyWindowsVista.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 Vista installation media.