New netstat options in XP SP2

Prior to Windows 2000 there was no built-in possibility to figure out which program on your system opened which port. You could use ‘netstat -an’ to list all open ports, but not which process or library has opened the ports. TcpView from SysInternals came to a rescue.

Starting with Windows XP and 2003 ‘netstat -ano’ shows the ID of the process that opened the port. So you could modify your task manager view to include PIDs and figure it out that way.

XP SP2 adds new switches to netstat to directly show the program (plus the subcomponents) that opened the port. cool.

try ‘netstat -b’ for a overview and ‘netstat -bv’ for more detailed info.

I still can recommend TcpView and for the highest possible amount of in-sight use Process Explorer (which can even replace the task manager).

This entry was posted in Uncategorized. Bookmark the permalink.

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out /  Change )

Google photo

You are commenting using your Google account. Log Out /  Change )

Twitter picture

You are commenting using your Twitter account. Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. Log Out /  Change )

Connecting to %s