Posted 28 January 2010 - 01:35 PM
What is tapi3.dll
Windows Process Description:
File Description: The file tapi3.dll is a component of Telephony Application Programming Interface (TAPI), a Microsoft Windows API that provides computer telephony integration and enables the PC's running Microsoft Windows to use telephone services.
The file tapi3.dll supports 32-bit based machines and was first included with Microsoft Windows 95; with the first TAPI version being TAPI 1.4. The file tapi3.dll typically supports both connections from individual computers and Local Area Network LAN connections helping any number of computers.
TAPI has a slightly different set of functionalities. The integrated media control was the most significant addition in this TAPI3.x.
The abstract model of phone lines and telephony applications provided by Telephony Application Programming Interface (TAPI) are still heavily impacted by the specific behavior of the underlying hardware. The troubleshooting performance issue usually requires both the computer software and the hardware vendors to work together. Because there is almost a relationship between the TAPI Service Provider (TSP) interface and the TAPI2.x interface, working together is often easier if the application is designed using TAPI 2.x. Experience with TAPI 3.x varies significantly between hardware vendors.
The file tapi3.dll usually runs in C/C++ and requires applications to make heavy use of C style pointer arithmetic. It makes Telephony Application Programming Interface (TAPI) fast and easy to access from C/C++ applications.
On the other hand, the file tapi3.dll was designed with a Component Object Model (COM) interface. This was created with the intent of making it accessible for managed languages like Visual Basic, VBScript, Java or other environments that provide easy access to COM but do not deal with C-style pointers.
Author: Microsoft Corporation
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