XComDrv是个通讯包，包含两个控件：TXComm，封装了一个通讯设备的若干特性；TXModem，MODEM与MODEM通讯的控件。最新的版本支持：定制流控制；任意波特率；完全的数据控制；指定事件字符；收/发数据；插件。TXModem可以用来：向MODEM设备发送AT指令；修改MODEM寄存器；拨号；连接；断开。最新版本包括XAsync v.1.2，异步（覆盖式）操作单元。功能无限制。源代码：包含，还有EXE演示。适用语言：CB4 CB5 D4 D5-XComDrv is a communications package that contains two controls: TXComm, Packaging, a number of characteristics of communications equipment　TXModem, MODEM control communications with the MODEM. The latest version supports: customized flow control　arbitrary baud rate　incomplete data control　designated events characters　admission/fat data　plug. TXModem can be used to: MODEM equipment to send AT commands　amend MODEM register　dial-up　connection　disconnected. The latest version include XAsync v.1.2, Asynchronous (cover type) operation unit. Features unlimited. Source code: contains, as well as EXE demo. Applicable language: CB4 CB5 D4 D5