Today I fixed an issue in AsyncPro. If I may quote the description of AsyncPro:
Async Professional is a comprehensive communications toolkit for Embarcadero Delphi and C++Builder. It provides direct access to serial ports, TAPI, and the Microsoft Speech API. It supports faxing, terminal emulation, VOIP, & more.
This is a source-only release of TurboPack AsyncPro. It includes designtime and runtime packages for Delphi and C++Builder and supports Win32. Win64 support is experimental!
E.g. AsyncPro includes fax components. As you can imagine it is a very ancient library and should not be used in new programs. But anyway, there are still many tools around, that use this library.