Virtual Serial Port SDK
Using Virtual Serial Port SDK you can create a "new" serial port on your computer. This serial port is completely controlled by your application. Other 3rd party applications can connect to this serial port and believe it is a normal physical port. In this way you can emulate all kinds of... Virtual Serial Port SDK is available for . ... 0 are included. ... NET and VisualBasic 6. ... NET and ActiveX, on all Windows platforms Windows Mobile/Pocket PC, Windows XP/2k/NT and Windows ME/98. ... Samples in C#, VB.
http://franson.com/serialtools/SerialToolsSDK.zip - 2Mb - Download