PPCtrl Parellel Port I/O Control This is an ActiveX Control, it can direct control a Parallel I/O Port, receive data bit by bits from parallel port, and send data bit by bits to parallel port, you can use it for control electronic ... Cost: $49 Buy full version       Trial version       Publisher: Ranseco Dot Com     Descriptions PPCtrl Parellel Port I/O Control: This is an ActiveX Control, it can direct control a Parallel I/O Port, receive data bit by bits from parallel port, and send data bit by bits to parallel port, you can use it for control electronic products (i.e. Switch on/off, Lighting, Monitoring), very easy for use !