Visual Basic 6 Получить путь к exe файлу активного окна - VB

Private Declare Function FindWindow Lib "user32" Alias "FindWindowW" (ByVal lpClassName As Long, ByVal lpWindowName As Long) As Long
Private Declare Function GetWindowThreadProcessId Lib "user32" (ByVal hwnd As Long, lpdwProcessId As Long) As Long
Private Declare Function GetVersionEx Lib "kernel32" Alias "GetVersionExW" (lpVersionInformation 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 CloseHandle Lib "kernel32" (ByVal hObject As Long) As Long
Private Declare Function QueryFullProcessImageName Lib "kernel32" Alias "QueryFullProcessImageNameW" (ByVal hProcess As Long, ByVal dwFlags As Long, ByVal lpExeName As Long, lpdwSize As Long) As Long
 
Private Sub Form_Load()
    Dim hwnd    As Long
    Dim lr      As Long
    Dim pid     As Long
    
    hwnd = FindWindow(ByVal 0&, StrPtr("Calculator"))
    If hwnd <> 0 Then
        lr = GetWindowThreadProcessId(hwnd, pid)
        MsgBox GetProcessNameByPID(pid)
    Else
        MsgBox "No window."
    End If
End Sub
 
Function GetProcessNameByPID(pid As Long) As String
    Const PROCESS_QUERY_LIMITED_INFORMATION As Long = &H1000
    Const PROCESS_QUERY_INFORMATION         As Long = &H400
    Const MAX_PATH                          As Long = 260
    Dim hProc               As Long
    Dim Path                As String
    Dim lStr                As Long
    Dim inf(68)             As Long
    Dim IsVistaAndLater     As Boolean
    inf(0) = 276: GetVersionEx inf(0): IsVistaAndLater = inf(1) >= 6
    If Not IsVistaAndLater Then Exit Function
    hProc = OpenProcess(IIf(IsVistaAndLater, PROCESS_QUERY_LIMITED_INFORMATION, PROCESS_QUERY_INFORMATION), False, pid)
    If hProc <> 0 Then 'INVALID_HANDLE_VALUE Then
        lStr = MAX_PATH
        Path = Space(lStr)
        ' minimum Windows Vista !!!!!!!
        If QueryFullProcessImageName(hProc, 0, StrPtr(Path), lStr) Then
            GetProcessNameByPID = Left$(Path, lStr)
        End If
        CloseHandle hProc
    End If
End Function