In this issue we publish an ActiveX component, which can be used to control the USB analogue converter (Elektor Electronics, November 2003). In this way, programmers can use C/C++, Delphi, VB etc. to include the converter in their own application.It is maybe less well known that these ActiveX components can also be used from web browsers that support scripts and ActiveX. For this reason we’ve created an example HTML file, which uses JavaScript and ActiveX to control the USB converter.