I was looking for a free C/C++ compiler for Windows and I found that a version of VC++ was free. After some googling I wrote a client that reads the serial port and dumps the data on the console. As with the perl client my TODO list includes logging and sending data to a web server. Current code is available in the projects CVS repository. Usage example:
si_reader.exe com4
The si_reader.exe client reads both the serial and USB inputs (from a virtual com port), although they are different for the same SI card (both main stations are in autosend mode). Hope this mystery will be revealed soon, for now I am in urgent need of some web/database application that receives and understand raw data.