LineGatherDigits Telephony API May Cause a Memory Leak in Tapisrv.exe

Any program that uses the lineGatherDigits Telephony API to collect digits on a specified call may cause a small memory leak. For example, a program that implements a menu-driven voice response system might use the lineGatherDigits API to gather the choices (digits) typed in by remote parties. This behavior occurs every time the lineGatherDigits API is called. Each time the API is called, 16 bytes of process heap leak in Tapisrv.exe. To resolve this problem, obtain the latest service pack for Windows NT 4.0. For additional information, click the following article number to view the article in the Microsoft Knowledge Base:
Microsoft has confirmed that this is a problem in Windows NT Server version 4.0. This problem was first corrected in Windows NT 4.0 Service Pack 5.