Question

string ComputerName = serverName;
ManagementScope Scope;

if (!ComputerName.Equals("localhost", StringComparison.OrdinalIgnoreCase))
{
    ConnectionOptions Conn = new ConnectionOptions();
    Conn.Username = "";
    Conn.Password = "";
    Conn.Authority = "ntlmdomain:DOMAIN";
    Scope = new ManagementScope(String.Format("\\\\{0}\\root\\CIMV2", ComputerName), Conn);
}
else
    Scope = new ManagementScope(String.Format("\\\\{0}\\root\\CIMV2", ComputerName), null);

Scope.Connect(); // CRASH HERE
ObjectQuery Query = new ObjectQuery("SELECT * FROM Win32_Process Where Name='" + processName + "'");
ManagementObjectSearcher Searcher = new ManagementObjectSearcher(Scope, Query);

显示的消息是：

价值不在预期范围内。

Answer 1

这很可能与错误的凭据或权限不足有关。在您的情况下，没有提供用户名 - 我很确定您无法传递空用户名。用于WMI查询的用户名/密码必须存在于远程PC上（此外，用户必须具有足够的权限）。

如果您想使用在本地PC上运行代码的相同用户名/密码，则应省略整个ConnectionOptions部分：

    //ConnectionOptions Conn = new ConnectionOptions();
    //Conn.Username = "";
    //Conn.Password = "";
    //Conn.Authority = "ntlmdomain:DOMAIN";

我尝试了你的代码（添加了最后4行进行测试），它出现了与你相同的错误。一旦我添加了用户名和密码，一切运行正常。

string ComputerName = "10.1.2.3";
ManagementScope Scope;

if (!ComputerName.Equals("localhost", StringComparison.OrdinalIgnoreCase))
{
    ConnectionOptions Conn = new ConnectionOptions();
    Conn.Username = "Administrator";
    Conn.Password = "pass123";
    //Conn.Authority = "ntlmdomain:DOMAIN";
    Scope = new ManagementScope(String.Format("\\\\{0}\\root\\CIMV2", ComputerName), Conn);
}
else
    Scope = new ManagementScope(String.Format("\\\\{0}\\root\\CIMV2", ComputerName), null);

Scope.Connect(); // CRASH HERE
ObjectQuery Query = new ObjectQuery("SELECT * FROM Win32_Process Where Name='" + "cmd.exe" + "'");
ManagementObjectSearcher Searcher = new ManagementObjectSearcher(Scope, Query);

ManagementObjectCollection queryCollection = Searcher.Get();

foreach (var item in queryCollection)
    Console.WriteLine(item["Description"]);

Console.Read();

我也尝试了相同的代码，其中有关于注释掉的ConnectionOptions的部分，它也有效。但请注意，根据我之前的描述，我必须在远程PC上创建一个用户，该用户具有与我在本地PC上登录的用户相同的凭据。

希望这有帮助。

编辑：同样根据Maximilian Gerhardt评论，跳过NULL这一行：

Scope = new ManagementScope(String.Format("\\\\{0}\\root\\CIMV2", ComputerName), null);

如何检查远程PC /服务器上是否正在运行特定进程？

1 个答案: