開發軟件時，當用到商業用途時，注冊碼與激活碼就顯得很重要了。現在的軟件破解技術實在在強了，各種國內外大型軟件都有注冊機制，但同時也不斷地被破解。下面發的只是一個常用版本，發出源碼被破就更容易了，但我們學習的是技術。當然也為以后自己的軟件不會被輕易破解。

第一步。根據卷標，CPU序列號，生成機器碼

// 取得設備硬盤的卷標號

public static string GetDiskVolumeSerialNumber()

{

ManagementClass mc = new ManagementClass(“Win32_NetworkAdapterConfiguration”);

ManagementObject disk = new ManagementObject(“win32_logicaldisk.deviceid=”d:”");

disk.Get();

return disk.GetPRopertyValue(“VolumeSerialNumber”).ToString();

}

//獲得CPU的序列號

public static string getCpu()

{

string strCpu = null;

ManagementClass myCpu = new ManagementClass(“win32_Processor”);

ManagementObjectCollection myCpuConnection = myCpu.GetInstances();

foreach (ManagementObject myObject in myCpuConnection)

{

strCpu = myObject.Properties["Processorid"].Value.ToString();

break;

}

return strCpu;

}

//生成機器碼

public static string getMNum()

{

string strNum = getCpu() + GetDiskVolumeSerialNumber();//獲得24位Cpu和硬盤序列號

string strMNum = strNum.Substring(0, 24);//從生成的字符串中取出前24個字符做為機器碼

return strMNum;

}

public static int[] intCode = new int[127];//存儲密鑰

public static int[] intNumber = new int[25];//存機器碼的Ascii值

public static char[] Charcode = new char[25];//存儲機器碼字

public static void setIntCode()//給數組賦值小于10的數

{

for (int i = 1; i < intCode.Length; i++)

{

intCode[i] = i % 9;

}

}

第二步。根據機器碼 生成注冊碼

//生成注冊碼

public static string getRNum()

{

setIntCode();//初始化127位數組

for (int i = 1; i < Charcode.Length; i++)//把機器碼存入數組中

{

Charcode[i] = Convert.ToChar(getMNum().Substring(i – 1, 1));

}

for (int j = 1; j < intNumber.Length; j++)//把字符的ASCII值存入一個整數組中。

{

intNumber[j] = intCode[Convert.ToInt32(Charcode[j])] + Convert.ToInt32(Charcode[j]);

}

string strAsciiName = “”;//用于存儲注冊碼

for (int j = 1; j < intNumber.Length; j++)

{

if (intNumber[j] >= 48 && intNumber[j] <= 57)//判斷字符ASCII值是否0－9之間

{

strAsciiName += Convert.ToChar(intNumber[j]).ToString();

}

else if (intNumber[j] >= 65 && intNumber[j] <= 90)//判斷字符ASCII值是否A－Z之間

{

strAsciiName += Convert.ToChar(intNumber[j]).ToString();

}

else if (intNumber[j] >= 97 && intNumber[j] <= 122)//判斷字符ASCII值是否a－z之間

{

strAsciiName += Convert.ToChar(intNumber[j]).ToString();

}

else//判斷字符ASCII值不在以上范圍內

{

if (intNumber[j] > 122)//判斷字符ASCII值是否大于z

{

strAsciiName += Convert.ToChar(intNumber[j] – 10).ToString();

}

else

{

strAsciiName += Convert.ToChar(intNumber[j] – 9).ToString();

}

}

}

return strAsciiName;

}

第三步。檢查注冊狀況，若沒有注冊，可自定義試用

/// <summary>

/// 檢查注冊

/// </summary>

private void CheckRegist()

{

this.btn_reg.Enabled = true;

RegistryKey retkey = Microsoft.Win32.Registry.CurrentUser.OpenSubKey(“software”, true).CreateSubKey(“wxk”).CreateSubKey(“wxk.INI”);

foreach (string strRNum in retkey.GetSubKeyNames())//判斷是否注冊

{

if (strRNum == clsTools.getRNum())

{

thControl(true);

return;

}

}

thControl(false);

Thread th2 = new Thread(new ThreadStart(thCheckRegist2));

th2.Start();

}

}

/// <summary>

/// 驗證試用次數

/// </summary>

private static void thCheckRegist2()

{

MessageBox.Show(“您現在使用的是試用版，該軟件可以免費試用3000000次！”, “提示”, MessageBoxButtons.OK, MessageBoxIcon.Information);

Int32 tLong;

try

{

tLong = (Int32)Registry.GetValue(“HKEY_LOCAL_MACHINE/SOFTWARE/angel”, “UseTimes”, 0);

MessageBox.Show(“感謝您已使用了” + tLong + “次”, “提示”, MessageBoxButtons.OK, MessageBoxIcon.Information);

}

catch

{

Registry.SetValue(“HKEY_LOCAL_MACHINE/SOFTWARE/angel”, “UseTimes”, 0, RegistryValueKind.DWord);

MessageBox.Show(“歡迎新用戶使用本軟件”, “提示”, MessageBoxButtons.OK, MessageBoxIcon.Information);

}

tLong = (Int32)Registry.GetValue(“HKEY_LOCAL_MACHINE/SOFTWARE/angel”, “UseTimes”, 0);

if (tLong < 3000000)

{

int Times = tLong + 1;

Registry.SetValue(“HKEY_LOCAL_MACHINE/SOFTWARE/angel”, “UseTimes”, Times);

}

else

{

MessageBox.Show(“試用次數已到”, “警告”, MessageBoxButtons.OK, MessageBoxIcon.Warning);

application.Exit();

}

}