I have an old app I support (written in VB6) and it interfaces with TAPI. Recently the app got installed on the Windows 2008 Server 64-bit edition. However, the TSP driver for TAPI installation, even though, it got installed, gave an innocuous looking warning.
However, the driver (which is 32-bit for sure), does not appear to have been recognized by Windows 2008. I tried hitting the 32-bit version of the Control Panel, but it was not there either.
So the question is this: does TAPI on 64-bit systems require a 64-bit driver? If that is the case, will my 32-bit application be able to work with the 64-bit TAPI driver?
The first answer is horribly wrong. TAPI is a windows API and is supported in every modern version of windows! Of course it is natively supported. The issue is purely a 32bit/64bit issue. A 32 bit process can not call into a 64bit process or visa versa. In order to run a TAPI application, you must have the correct TSP. A 32bit application will need a 32 bit TSP. If you have a 64bit compiled application, you will need a 64bit TSP, or perhaps a 32bit TSP that extracts its UI functions into a separate dll.