问C# -使用INetFwPolicy2添加的防火墙规则未生效

EN

Type tNetFwPolicy2 = Type.GetTypeFromProgID("HNetCfg.FwPolicy2");
INetFwPolicy2 fwPolicy2 = (INetFwPolicy2)Activator.CreateInstance(tNetFwPolicy2);
foreach (INetFwRule2 rule in fwPolicy2.Rules)
{
    if (rule.Name == ruleName)
    {
        if (!rule.Enabled)
        {
            rule.Enabled = true;
        }
        return;
    }
}
INetFwRule2 inboundRule = (INetFwRule2)Activator.CreateInstance(Type.GetTypeFromProgID("HNetCfg.FWRule"));
inboundRule.Enabled = true;
inboundRule.Action = NET_FW_ACTION_.NET_FW_ACTION_ALLOW;
inboundRule.Protocol = (int)NET_FW_IP_PROTOCOL_.NET_FW_IP_PROTOCOL_TCP;
inboundRule.LocalPorts = "8080";
inboundRule.Name = ruleName;               // ruleName is the name of the assembly
inboundRule.ApplicationName = progName;    // progName is the full path to the executable
fwPolicy2.Rules.Add(inboundRule);