Microsoft Windows [Version 6.0.6001] (C) Copyright 2006 Microsoft Corp. c:\windows>netsh firewall delete portopening ?
delete portopening
[ protocol = ] TCP|UDP|ALL
[ port = ] 1-65535
[[ profile = ] CURRENT|DOMAIN|STANDARD|ALL
Deletes firewall port configuration.
Parameters:
protocol - Port protocol.
TCP - Transmission Control Protocol (TCP).
UDP - User Datagram Protocol (UDP).
ALL - All protocols.
port - Port number.
profile - Configuration profile (optional).
CURRENT - Applies to the active profile. Active profile can be domain,
standard (i.e. private), or public. (default).
DOMAIN - Applies to the domain profile.
STANDARD - Applies to the standard (i.e. private) profile.
ALL - Applies to the domain and standard (i.e. private) profile.
Does not apply to the public profile.
Examples:
delete portopening TCP 80
delete portopening protocol=UDP port=500