Santa Clara, California-based internet network management start up VitalSigns Software Inc has signed another high profile bundling partner. Microsoft Corp is the latest to pick up its Net.Medic network analysis client software. The company has already struck deals with Netscape Communications Corp, 3Com Corp, and Network Associates Inc for its products (CI No 3,276). The Net.Medic end user client software is a control panel that runs under Windows 95/NT and analyzes individual IP packets in order to calculate where network bottlenecks are occurring, allowing users to remedy the problem. The deal with Microsoft involves bundling of a cut down version of its software with the retail version of Internet Explorer 4.0, named Internet Explorer Plus which is being sold for $50. VitalSigns isn’t making any direct revenue from the deal, but charges upgrade fees of $50 for those who want the full utility.