THE SINGLE BEST STRATEGY TO USE FOR ACGWINLOGIN

The Cygwin DLL has a console driver that emulates a Unix-style terminal in the Home windows console. Cygwin's default user interface would be the bash shell operating while in the Cygwin console. The DLL also implements pseudo terminal (pty) equipment. Cygwin ships with several terminal emulators that happen to be according to them, like mintty, rx