偵測是否已安裝遠端桌面服務角色

您可以使用 Win32_ServerFeature WMI 類別來偵測是否已安裝遠端桌面服務伺服器角色。

下列 C# 範例顯示如果已安裝並執行遠端桌面服務伺服器角色，則會傳回 True 的方法，否則傳回 False 。 因為 Win32_ServerFeature WMI 類別僅適用于 Windows Server 2008，所以此程式碼與舊版 Windows 不相容。

static void Main(string[] args)
{
    // 14 is the identifier of the Remote Desktop Services role.
    HasServerFeatureById(14);
}

static bool HasServerFeatureById(UInt32 roleId)
{
    try
    {
        ManagementClass serviceClass = new ManagementClass("Win32_ServerFeature");
        foreach (ManagementObject feature in serviceClass.GetInstances())
        {
            if ((UInt32)feature["ID"] == roleId)
            {
                return true;
            }
        }

        return false;
    }
    catch (ManagementException)
    {
        // The most likely cause of this is that this is being called from an 
        // operating system that is not a server operating system.
    }

    return false;
}