INetSharingConfiguration::DisableInternetFirewall method (netcon.h)

[Internet Connection Firewall may be altered or unavailable in subsequent versions. Instead, use the Windows Firewall API.]

The DisableInternetFirewall method disables Internet Connection Firewall on this connection.

Syntax

HRESULT DisableInternetFirewall();

Return value

If the method succeeds the return value is S_OK.

If the method fails, the return value is one of the following error codes.

Return code	Description
E_ABORT	The operation was stopped.
E_FAIL	An unspecified error occurred.
E_INVALIDARG	One of the parameters is not valid.
E_NOINTERFACE	A specified interface is not supported.
E_NOTIMPL	A specified method is not implemented.
E_OUTOFMEMORY	The method was unable to allocate required memory.
E_POINTER	A pointer passed as a parameter is not valid.
E_UNEXPECTED	The method failed for unknown reasons.

Remarks

Calling this method triggers the following notification:

%programname% is attempting to disable your Internet Connection Firewall. This makes your computer more vulnerable to Internet security threats. Do you want to allow %programname% to disable Internet Connection Firewall?

This method returns successfully even if Internet Connection Firewall was not enabled on this connection.

Use the INetSharingManager::get_INetSharingConfigurationForINetConnection method to obtain an INetSharingConfiguration interface for a particular connection.

Windows XP with SP2:  Calling this API will disable the firewall on the specified interface, regardless of whether the Windows Firewall is on.

Requirements

Requirement	Value
Minimum supported client	Windows XP [desktop apps only]
Minimum supported server	None supported
Target Platform	Windows
Header	netcon.h
DLL	Hnetcfg.dll

See also

INetSharingConfiguration

INetSharingConfiguration::EnableInternetFirewall

INetSharingConfiguration::get_InternetFirewallEnabled