VSPM-Virtual Serial Port for Windows

Create virtual serial port on pc.Map this VSP to TCP/IP or UDP.Use for Serial Server,GPRS/CDMA DTU,or other product 1.Support TCP/IPServer,Client or UDP broadcast mode.2.Support error check(KeepALive),auto rety connect.3.Multithreading.4.Communication between the two VSP5.Map PC hareware COM Port to TCP/IP6.Run as Application or Service7.Very low memory consume.VSPM is FREEWARE. This version is the first release on CNET Download.com.