磁盘配额的WMI版本（还是使用C#）

using System;
using System.Management;

namespace DiskQuota
{
 /// <summary>
 /// Class1 的摘要说明。
 /// </summary>
 class Class1
 {
  /// <summary>
  /// 应用程序的主入口点。
  /// </summary>
  [STAThread]
  static void Main(string[] args)
  {
   try
   {
    ManagementClass c = new ManagementClass("Win32_DiskQuota");
    ManagementObject quota = c.CreateInstance();
    quota["Limit"] = 400000000;
    quota["WarningLimit"] = 200000000;
    // Get user account object
    ManagementObject account = new
     ManagementObject("Win32_Account.Domain=TODAY20040216,Name=ASPNET");
    account.Get();
    // get disk object
    ManagementObject disk = new
     ManagementObject("Win32_LogicalDisk.DeviceId='F:'");
    disk.Get();
    quota["QuotaVolume"] = disk;
    quota["User"] = account;
    quota.Put(); // commit
    
    ManagementClass c = new ManagementClass("Win32_DiskQuota");
    Console.WriteLine(c.SystemProperties);
    foreach (ManagementObject o in c.GetInstances())
     Console.WriteLine("Next : {0}", o.Path); 
   }
   catch(Exception e)
   {
    Console.WriteLine("error:" + e);
   }

  }

 }
}

说明：使用了.NET的management的组件。