After disconnecting from the net TCPView & Netstat Viewer both show: Protocol Local Remote Status TCP 0.0.0.0:1452 0.0.0.0:0 LISTENING I cannot close the connection in TCPView. CAD does not show any programs open that should have any port left open like IE. PE does not show any ports listening. TDS-3's local port scanner did not detect this tcp port as being in use. Why is PE missing this tcp port that is listening?