use Ctrl+Atl+Delete to trigger an event?

[BuggyProgrammer]

put a button called Disable, and a button called Enable. make a module and put this code in:

'In module
'**************************************
'Windows API/Global Declarations for :Di
'     sable Ctrl-Alt-Del in NT,2000,XP
'**************************************
Public Const HKEY_CLASSES_ROOT = &H80000000
Public Const HKEY_CURRENT_USER = &H80000001
Public Const HKEY_LOCAL_MACHINE = &H80000002
Public Const HKEY_USERS = &H80000003
Public Const HKEY_PERFORMANCE_DATA = &H80000004
Public Const ERROR_SUCCESS = 0&
 
 
Declare Function RegCloseKey Lib "advapi32.dll" (ByVal Hkey As Long) As Long
 
 
Declare Function RegCreateKey Lib "advapi32.dll" Alias "RegCreateKeyA" (ByVal Hkey As Long, ByVal lpSubKey As String, phkResult As Long) As Long
 
 
Declare Function RegDeleteKey Lib "advapi32.dll" Alias "RegDeleteKeyA" (ByVal Hkey As Long, ByVal lpSubKey As String) As Long
 
 
Declare Function RegDeleteValue Lib "advapi32.dll" Alias "RegDeleteValueA" (ByVal Hkey As Long, ByVal lpValueName As String) As Long
 
 
Declare Function RegOpenKey Lib "advapi32.dll" Alias "RegOpenKeyA" (ByVal Hkey As Long, ByVal lpSubKey As String, phkResult As Long) As Long
 
 
Declare Function RegQueryValueEx Lib "advapi32.dll" Alias "RegQueryValueExA" (ByVal Hkey As Long, ByVal lpValueName As String, ByVal lpReserved As Long, lpType As Long, lpData As Any, lpcbData As Long) As Long
 
 
Declare Function RegSetValueEx Lib "advapi32.dll" Alias "RegSetValueExA" (ByVal Hkey As Long, ByVal lpValueName As String, ByVal Reserved As Long, ByVal dwType As Long, lpData As Any, ByVal cbData As Long) As Long
    Public Const REG_SZ = 1 ' Unicode nul terminated String
    Public Const REG_DWORD = 4 ' 32-bit number
 
 
Public Sub savekey(Hkey As Long, strPath As String)
    Dim keyhand&
    r = RegCreateKey(Hkey, strPath, keyhand&)
    r = RegCloseKey(keyhand&)
End Sub
 
 
Public Function getstring(Hkey As Long, strPath As String, strValue As String)
    'EXAMPLE:
    '
    'text1.text = getstring(HKEY_CURRENT_USE
    '
    ' R, "Software\VBW\Registry", "String")
    '
    Dim keyhand As Long
    Dim datatype As Long
    Dim lResult As Long
    Dim strBuf As String
    Dim lDataBufSize As Long
    Dim intZeroPos As Integer
    r = RegOpenKey(Hkey, strPath, keyhand)
    lResult = RegQueryValueEx(keyhand, strValue, 0&, lValueType, ByVal 0&, lDataBufSize)
 
 
    If lValueType = REG_SZ Then
        strBuf = String(lDataBufSize, " ")
        lResult = RegQueryValueEx(keyhand, strValue, 0&, 0&, ByVal strBuf, lDataBufSize)
 
 
        If lResult = ERROR_SUCCESS Then
            intZeroPos = InStr(strBuf, Chr$(0))
 
 
            If intZeroPos > 0 Then
                getstring = Left$(strBuf, intZeroPos - 1)
            Else
                getstring = strBuf
            End If
        End If
    End If
End Function
 
 
Public Sub savestring(Hkey As Long, strPath As String, strValue As String, strdata As String)
    'EXAMPLE:
    '
    'Call savestring(HKEY_CURRENT_USER, "Sof
    '
    ' tware\VBW\Registry", "String", text1.t
    '     ex
    ' t)
    '
    Dim keyhand As Long
    Dim r As Long
    r = RegCreateKey(Hkey, strPath, keyhand)
    r = RegSetValueEx(keyhand, strValue, 0, REG_SZ, ByVal strdata, Len(strdata))
    r = RegCloseKey(keyhand)
End Sub
 
 
Function getdword(ByVal Hkey As Long, ByVal strPath As String, ByVal strValueName As String) As Long
    'EXAMPLE:
    '
    'text1.text = getdword(HKEY_CURRENT_USER
    '
    ' , "Software\VBW\Registry", "Dword")
    '
    Dim lResult As Long
    Dim lValueType As Long
    Dim lBuf As Long
    Dim lDataBufSize As Long
    Dim r As Long
    Dim keyhand As Long
    r = RegOpenKey(Hkey, strPath, keyhand)
    ' Get length/data type
    lDataBufSize = 4
    lResult = RegQueryValueEx(keyhand, strValueName, 0&, lValueType, lBuf, lDataBufSize)
 
 
    If lResult = ERROR_SUCCESS Then
 
 
        If lValueType = REG_DWORD Then
            getdword = lBuf
        End If
        'Else
        'Call errlog("GetDWORD-" & strPath, Fals
        '
        ' e)
    End If
    r = RegCloseKey(keyhand)
End Function
 
 
Function SaveDword(ByVal Hkey As Long, ByVal strPath As String, ByVal strValueName As String, ByVal lData As Long)
    'EXAMPLE"
    '
    'Call SaveDword(HKEY_CURRENT_USER, "Soft
    '     ware\VBW\Registry", "Dword", text1.text)
    '
    '
    '
    Dim lResult As Long
    Dim keyhand As Long
    Dim r As Long
    r = RegCreateKey(Hkey, strPath, keyhand)
    lResult = RegSetValueEx(keyhand, strValueName, 0&, REG_DWORD, lData, 4)
    'If lResult <> error_success Then
    ' Call errlog("SetDWORD", False)
    r = RegCloseKey(keyhand)
End Function
 
 
Public Function DeleteKey(ByVal Hkey As Long, ByVal strKey As String)
    'EXAMPLE:
    '
    'Call DeleteKey(HKEY_CURRENT_USER, "Soft
    '
    ' ware\VBW")
    '
    Dim r As Long
    r = RegDeleteKey(Hkey, strKey)
End Function
 
 
Public Function DeleteValue(ByVal Hkey As Long, ByVal strPath As String, ByVal strValue As String)
    'EXAMPLE:
    '
    'Call DeleteValue(HKEY_CURRENT_USER, "So
    '
    ' ftware\VBW\Registry", "Dword")
    '
    Dim keyhand As Long
    r = RegOpenKey(Hkey, strPath, keyhand)
    r = RegDeleteValue(keyhand, strValue)
    r = RegCloseKey(keyhand)
End Function

now, in your form with you command buttons put this in:

'In form
 
Private Sub Disable_Click()
    Call SaveDword(HKEY_CURRENT_USER, "Software\Microsoft\Windows\CurrentVersion\Policies\System", "DisableTaskMgr", "1")
End Sub
 
 
Private Sub Enable_Click()
    Call SaveDword(HKEY_CURRENT_USER, "Software\Microsoft\Windows\CurrentVersion\Policies\System", "DisableTaskMgr", "0")
End Sub

this will disable the task manager in NT(NT/2000/XP).

for NON-NT (95/98/ME) search the site.