BitLevelCOM - C source code library that allows a calling user application to access serial communication ports (COM devices) under 32-bit MS Windows operating systems. It allows to transmit and receive data and control line signals (e.g. RTS, DTR)..

An ActiveX for controlling industrial process equipment. Models pneumatic and electronic industrial controllers. Properties for gain, reset, preact, input, output, and measured value. Visual display shows 3 scales with pointers that can be adjust...

Excel ActiveX acts as an ActiveX document container for hosting Excel document in a custom form or Web page. Support Excel automation client and offer abundant sample codes.