C# code to remove or Eject the floppy drive

Hi guyz, i got the below code from MSDN regarding removal of resources from vm. The below example is for removing some nic settings.
What i need is to remove or Eject the Floppy disk which i have earlier attached from a virtual machine.
I followed the below procedure, but every time it gives me "Failed to remove resources from virtual machine" 
Can any plz give working c# code to eject floppy drive(not through Powershell)
using System;
using System.Management;

namespace HyperVSamples
{
    class RemoveVirtualSystemResourcesClass
    {
        ManagementObject virtualSystemService = null;
        ManagementScope scope = null;

        RemoveVirtualSystemResourcesClass()
        {
            scope = new ManagementScope(@"root\virtualization", null);
            virtualSystemService = Utility.GetServiceObject(scope, "Msvm_VirtualSystemManagementService");
        }

        ManagementObject GetVirtualSystemEthernetPortSetting(ManagementObject vmSetting, string SyntheticNicElementName)
        {
            ManagementObject SyntheticNicSetting = null;
            ManagementObjectCollection SyntheticNicSettings = vmSetting.GetRelated
            (
             "Msvm_SyntheticEthernetPortSettingData","Msvm_VirtualSystemSettingDataComponent",
                null,
                null,"PartComponent","GroupComponent",
                false,
                null
            );

            foreach (ManagementObject instance in SyntheticNicSettings)
            {
                if (instance["ElementName"].ToString().ToLower() == SyntheticNicElementName.ToLower())
                {
                    SyntheticNicSetting = instance;
                    break;
                }
            }

            return SyntheticNicSetting;

        }

        void RemoveVirtualSystemResources(string vmName, string syntheticNicName)
        {

            ManagementObject vm = Utility.GetTargetComputer(vmName, scope);
            ManagementObject vmSetting = Utility.GetVirtualSystemSettingData(vm);

            ManagementObject syntheticNicPortSetting = GetVirtualSystemEthernetPortSetting(vmSetting, syntheticNicName);

            ManagementBaseObject inParams = virtualSystemService.GetMethodParameters("RemoveVirtualSystemResources");
            inParams["TargetSystem"] = vm.Path.Path;
            string[] resources = new string[1];
            resources[0] = syntheticNicPortSetting.Path.Path;

            inParams["ResourcesettingData"] = resources;

            ManagementBaseObject outParams = virtualSystemService.InvokeMethod("RemoveVirtualSystemResources", inParams, null);

            if ((UInt32)outParams["ReturnValue"] == ReturnCode.Started)
            {
                if (Utility.JobCompleted(outParams, scope))
                {
                    Console.WriteLine("SyntheticNic was removed successfully.");

                }
                else
                {
                    Console.WriteLine("Failed to remove SyntheticNic from VM");
                }
            }
            else if ((UInt32)outParams["ReturnValue"] == ReturnCode.Completed)
            {
                Console.WriteLine("SyntheticNic was removed successfully.");
            }
            else
            {
                Console.WriteLine("Remove SyntheticNic failed with error : {0}", outParams["ReturnValue"]);
            }

            inParams.Dispose();
            outParams.Dispose();
            vm.Dispose();
            vmSetting.Dispose();
            syntheticNicPortSetting.Dispose();
        }

        void Close()
        {
            this.virtualSystemService.Dispose();
        }

        static void Main(string[] args)
        {
            if (args != null && args.Length != 2)
            {
                Console.WriteLine("Usage: RemoveVirtualSystemResources vmName syntheticNicName");
                Console.WriteLine("Example: RemoveVirtualSystemResources MyFirstVM myStaticNic");
                return;
            }

            RemoveVirtualSystemResourcesClass removeResource = new RemoveVirtualSystemResourcesClass();
            removeResource.RemoveVirtualSystemResources(args[0], args[1]);
            removeResource.Close();
        }
    }
}