获取本地服务列表信息的时候报了不知名的错误

[zhu5152]

这是获取本地计算机服务列表的时候就报错了。

网上找了半天 也找不到关于 System.Runtime.InteropServices.COMException (0x800700A4) 这个异常的资料

 public Win32ServiceManager(string host, string userName, string password, bool isLocal)
        {
            this.sHost = host;
            this.strPath = "\\\\" + host + "\\root\\cimv2:Win32_Service";
            this.managementClass = new ManagementClass(strPath);
            if (userName != null && userName.Length > 0)
            {
                ManagementScope managementScope;
                if (isLocal)
                {
                    managementScope = new ManagementScope("\\\\" + host + "\\root\\cimv2");
                }
                else
                {
                    ConnectionOptions connectionOptions = new ConnectionOptions();
                    connectionOptions.Username = userName;
                    connectionOptions.Password = password;
                    managementScope = new ManagementScope("\\\\" + host + "\\root\\cimv2", connectionOptions);
                }
                this.managementClass.Scope = managementScope;
            }
        }

       string sServicesName;
            string sState;
            string sStartMode;
            string[,] services = new string[this.managementClass.GetInstances().Count, 4];
            int i = 0;
            foreach (ManagementObject mo in this.managementClass.GetInstances())
            {
                sServicesName = (string)mo["Name"];
                if (sServicesName.Length < 4)
                    continue;
                if (sServicesName.Substring(0, 4) == "ZYTK")
                {
                    services[i, 0] = sServicesName;
                    services[i, 1] = (string)mo["Description"];//描述
                    sState = (string)mo["State"];
                    if (sState.Trim() == "Running")
                        services[i, 2] = "已启动";
                    else
                        services[i, 2] = "停止";
                    sStartMode = (string)mo["StartMode"];
                    if (sStartMode.Trim() == "Auto")
                        services[i, 3] = "自动";
                    if (sStartMode.Trim() == "Disabled")
                        services[i, 3] = "已禁用";
                    if (sStartMode.Trim() == "Manual")
                        services[i, 3] = "手动";
                    i++;
                }
                else
                    continue;
            }
            return services;

try catch 后 大概是这两段代码报了异常
if (Win32ServiceManager.SSManager == null)
{
string LocalIP = GetLocalIP();
Win32ServiceManager.SSManager = new Win32ServiceManager(LocalIP, "username", "pwd", true);
}
//将Zytk带头的服务获取出来
ServicesInfo = Win32ServiceManager.SSManager.GetZytkServiceList();

[zhu5152]

 public string[,] GetZytkServiceList()
        {
            string sServicesName;
            string sState;
            string sStartMode;
            string[,] services = new string[this.managementClass.GetInstances().Count, 4];
            int i = 0;
            foreach (ManagementObject mo in this.managementClass.GetInstances())
            {
                sServicesName = (string)mo["Name"];
                if (sServicesName.Length < 4)
                    continue;
                if (sServicesName.Substring(0, 4) == "ZYTK")
                {
                    services[i, 0] = sServicesName;
                    services[i, 1] = (string)mo["Description"];//描述
                    sState = (string)mo["State"];
                    if (sState.Trim() == "Running")
                        services[i, 2] = "已启动";
                    else
                        services[i, 2] = "停止";
                    sStartMode = (string)mo["StartMode"];
                    if (sStartMode.Trim() == "Auto")
                        services[i, 3] = "自动";
                    if (sStartMode.Trim() == "Disabled")
                        services[i, 3] = "已禁用";
                    if (sStartMode.Trim() == "Manual")
                        services[i, 3] = "手动";
                    i++;
                }
                else
                    continue;
            }
            return services;
        }

第二段代码 少了个头