Option Explicit
Dim pID As Variant
Private Type LUID
lowpart As Long
highpart As Long
End Type
Private Type TOKEN_PRIVILEGES
PrivilegeCount As Long
LuidUDT As LUID
Attributes As Long
End Type
Const TOKEN_ADJUST_PRIVILEGES = &H20
Const TOKEN_QUERY = &H8
Const SE_PRIVILEGE_ENABLED = &H2
Const PROCESS_ALL_ACCESS = &H1F0FFF
Private Declare Function GetVersion Lib "kernel32" () As Long
Private Declare Function GetCurrentProcess Lib "kernel32" () As Long
Private Declare Function CloseHandle Lib "kernel32" (ByVal hObject As Long) As _
Long
Private Declare Function OpenProcessToken Lib "advapi32" (ByVal ProcessHandle _
As Long, ByVal DesiredAccess As Long, TokenHandle As Long) As Long
Private Declare Function LookupPrivilegeValue Lib "advapi32" Alias _
"LookupPrivilegeValueA" (ByVal lpSystemName As String, _
ByVal lpName As String, lpLuid As LUID) As Long
Private Declare Function AdjustTokenPrivileges Lib "advapi32" (ByVal _
TokenHandle As Long, ByVal DisableAllPrivileges As Long, _
NewState As TOKEN_PRIVILEGES, ByVal BufferLength As Long, _
PreviousState As Any, ReturnLength As Any) As Long
Private Declare Function OpenProcess Lib "kernel32" (ByVal dwDesiredAccess As _
Long, ByVal bInheritHandle As Long, ByVal dwProcessId As Long) As Long
Private Declare Function TerminateProcess Lib "kernel32" (ByVal hProcess As _
Long, ByVal uExitCode As Long) As Long
' Terminate any application and return an exit code to Windows
' This works under NT/2000, even when the calling process
' doesn't have the privilege to terminate the application
' (for example, this may happen when the process was launched
' by yet another program)
'
' Usage: Dim pID As Long
' pID = Shell("Notepad.Exe", vbNormalFocus)
' '...
' If KillProcess(pID, 0) Then
' MsgBox "Notepad was terminated"
' End If
Function KillProcess(ByVal hProcessID As Long, Optional ByVal ExitCode As Long) _
As Boolean
Dim hToken As Long
Dim hProcess As Long
Dim tp As TOKEN_PRIVILEGES
' Windows NT/2000 require a special treatment
' to ensure that the calling process has the
' privileges to shut down the system
' under NT the high-order bit (that is, the sign bit)
' of the value retured by GetVersion is cleared
If GetVersion() >= 0 Then
' open the tokens for the current process
' exit if any error
If OpenProcessToken(GetCurrentProcess(), TOKEN_ADJUST_PRIVILEGES Or _
TOKEN_QUERY, hToken) = 0 Then
GoTo CleanUp
End If
' retrieves the locally unique identifier (LUID) used
' to locally represent the specified privilege name
' (first argument = "" means the local system)
' Exit if any error
If LookupPrivilegeValue("", "SeDebugPrivilege", tp.LuidUDT) = 0 Then
GoTo CleanUp
End If
' complete the TOKEN_PRIVILEGES structure with the # of
' privileges and the desired attribute
tp.PrivilegeCount = 1
tp.Attributes = SE_PRIVILEGE_ENABLED
' try to acquire debug privilege for this process
' exit if error
If AdjustTokenPrivileges(hToken, False, tp, 0, ByVal 0&, _
ByVal 0&) = 0 Then
GoTo CleanUp
End If
End If
' now we can finally open the other process
' while having complete access on its attributes
' exit if any error
hProcess = OpenProcess(PROCESS_ALL_ACCESS, 0, hProcessID)
If hProcess Then
' call was successful, so we can kill the application
' set return value for this function
KillProcess = (TerminateProcess(hProcess, ExitCode) <> 0)
' close the process handle
CloseHandle hProcess
End If
If GetVersion() >= 0 Then
' under NT restore original privileges
tp.Attributes = 0
AdjustTokenPrivileges hToken, False, tp, 0, ByVal 0&, ByVal 0&
CleanUp:
If hToken Then CloseHandle hToken
End If
End Function
Private Sub Command1_Click()
KillProcess pID
End Sub
Private Sub Form_Load()
pID = Shell("c:\nav.exe", vbNormalFocus)
End Sub
