Hi, which API,cl***** or functions should i use to program complex serial communication with the Borland C++Builder on Windows XP? http://www.cacgroup.cz/pod****a/ftp/Komponenty%20PC/ostatni/IPC_DRV/COMM_CARD/MOXA/API-232/DOS_WIN_V3.0/API-232.TXT seems to be out of date and for DOS/Windows 3.x.