There is a denial of service vulnerability in WebTV for Windows that may allow a malicious user to remotely crash either the WebTV for Windows application and/or the computer system running WebTV for Windows. Restarting the application and/or system will return the system to its normal state.Although the WebTV for Windows application ships with Windows ME, the application is not installed by default, and customers who have not installed it would not be at risk.Note: This vulnerability is not related to the WebTV™ service provided by WebTV Networks. WebTV is a service that provides Internet services to users via their television. WebTV for Windows is an unrelated product that enables users to view TV programs on their computer.