batcmd.com Windows 7 Services

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, 8, Vista and XP.

Startup Type

Windows 7 edition without SP SP1
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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:
  • SeAuditPrivilege
  • SeChangeNotifyPrivilege
  • SeCreateGlobalPrivilege
  • SeImpersonatePrivilege
  • SeIncreaseQuotaPrivilege
  • SeAssignPrimaryTokenPrivilege

Default Behavior

The Telephony service runs as NT AUTHORITY\NetworkService in a shared process. It shares an 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 for 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.