小编Jav*_*irl的帖子

我有C#应用程序使用PORT 777进行异步通信,PORT 3306用于与My Sql Server进行通信.端口被防火墙阻止时出现问题.我试图创建一个程序,在Windows 7的防火墙列表中添加一个例外.

当我运行程序时,我得到如下错误:"灾难性故障(HRESULT异常:0x8000FFFF(E_UNEXPECTED))".

我不明白这些错误是什么意思,欢迎提出任何建议,谢谢.

protected internal void AddExceptionToFirewall(){
    try {
        INetFwMgr fireWall = null;
        INetFwAuthorizedApplications apps = null;
        INetFwAuthorizedApplication app = null;
        Type progID = null;
        INetFwOpenPorts ports = null;
        INetFwOpenPort asyncPort = null;
        INetFwOpenPort mysqlPort = null;
        bool appFounded = false;
        bool asyncPortFounded = false;
        bool mysqlPortFounded = false;

        progID = Type.GetTypeFromProgID("HNetCfg.FwMgr");

        // checking for Windows Firewall
        fireWall = (INetFwMgr)Activator.CreateInstance(progID);
        if (fireWall.LocalPolicy.CurrentProfile.FirewallEnabled) {

            // obtain the list of authorized applications
            apps = (INetFwAuthorizedApplications)fireWall.LocalPolicy.CurrentProfile.AuthorizedApplications;
            IEnumerator appEnumerate …