VB编程破解Windows屏幕保护密码

　　2、模块代码：

　　　　Option Explicit
　　Const ERROR_SUCCESS = 0&
　　Const ERROR_BADDB = 1009&
　　Const ERROR_BADKEY = 1010&
　　Const REG_EXPAND_SZ = 2&
　　Const REG_BINARY = 3&
　　Const KEY_QUERY_VALUE = &H1&
　　Const KEY_ENUMERATE_SUB_KEYS = &H8&
　　Const KEY_NOTIFY = &H10&
　　Const READ_CONTROL = &H20000
　　Const STANDARD_RIGHTS_READ = READ_CONTROL
　　Const KEY_READ = STANDARD_RIGHTS_READ Or KEY_QUERY_VALUE Or KEY_ENUMERATE_SUB_KEYS Or KEY_NOTIFY
　　Const HKEY_CURRENT_USER = &H80000001
　　Dim hKey As Long, MainKeyHandle As Long
　　Dim rtn As Long, lBuffer As Long, sBuffer As String, SubKey As String
　　Dim lBufferSize As Long
　　Declare Function RegOpenKeyEx Lib "advapi32.dll" Alias "RegOpenKeyExA" (ByVal hKey As Long, ByVal lpSubKey As String, ByVal ulOptions As Long, ByVal samDesired As Long, phkResult As Long) As Long
　　Declare Function RegCloseKey Lib "advapi32.dll" (ByVal hKey As Long) As Long
　　Declare Function RegQueryValueEx Lib"advapi32.dll" Alias"Reg QueryValueExA" (ByVal hKey As Long, ByVal lpValueName As String, ByVal lpReserved As Long, lpType As Long, ByVal lpData As String, lpcbData As Long) As Long
　　Function GetBinaryValue(Entry As String)
　　MainKeyHandle = HKEY_CURRENT_USER
　　SubKey = "Control Panel\desktop\"
　　rtn = RegOpenKeyEx(MainKeyHandle, SubKey, 0, KEY_READ, hKey)
　　 If rtn = ERROR_SUCCESS Then '如果HKEY_CURRENT_USER\Control Panel\desktop键被成功打开
　　 lBufferSize = 1
　　 rtn = RegQueryValueEx(hKey, Entry, 0, REG_BINARY, 0, lBufferSize) '读取ScreenSave_Data的值
　　 sBuffer = Space(lBufferSize)
　　 rtn = RegQueryValueEx(hKey, Entry, 0, REG_BINARY, sBuffer, lBufferSize)
　　 If rtn = ERROR_SUCCESS Then '如果读取ScreenSave_Data的值成功
　　 rtn = RegCloseKey(hKey)
　　 GetBinaryValue = sBuffer '函数返回ScreenSave_Data的值
　　 Else '如果读取ScreenSave_Data的值不成功
　　 Call ErrorMsg
　　 End
　　 End If
　　Else '如果HKEY_CURRENT_USER\Control Panel\desktop键不能打开
　　 Call ErrorMsg '调用ErrorMsg()过程
　　 End
　　 End If
　　End Function
　　Private Sub ErrorMsg() '显示错误信息过程
　　 Select Case rtn
　　 Case ERROR_BADDB
　　 MsgBox ("您的计算机注册表有错误!")
　　Case ERROR_BADKEY, REG_EXPAND_SZ
　　 MsgBox ("您的计算机未设屏保密码！")
　　Case Else
　　 MsgBox ("破解过程中遇到未知错误，错误号：" & Str＄(rtn))
　　 End Select
　　End Sub