Stay on top of the latest XP tips and tricks with our free Windows XP newsletter, delivered each Thursday. Automatically sign up today!When troubleshooting TCP/IP connectivity problems on a Windows XP system, you may want to find out what applications or services are listening on which open TCP and UDP ports. To make this task easier, Microsoft beefed up the Netstat command-line tool in Service Pack 2 with a new parameter.
The new -b parameter builds onto the information displayed by the -o parameter. The -b parameter allows the Netstat command to display the TCP or UDP port, the file names corresponding to the components of the service that owns the port, and the PID.
Then, you can use the Tasklist /SVC command to display the list of each service in each process. Now, cross reference the file name and the PID obtained from the Netstat -b command with the list generated by the Tasklist /SVC command to identify which services are currently using what ports.
For more information on SP2, visit TechRepublic's Windows XP Service Pack 2 Spotlight page, which contains news stories, downloads, discussions, articles, white papers, and more.
Greg Shultz is a freelance Technical Writer. Previously, he has worked as Documentation Specialist in the software industry, a Technical Support Specialist in educational industry, and a Technical Journalist in the computer publishing industry.