Serial Line FileXfer ActiveX is Windows compatible. MegaPipe ActiveX is a serial line file-transfer control supporting the protocols of XModem Checksum, XModem CRC, XModem 1K, YModem, YModem-G, Zmodem and Kermit. It can be used in any ActiveX-compliant environment like VC++, VB, VB.Net, C#.Net, Access, Delphi and Borland C++.