Private Declare Function WaitForSingleObject Lib "kernel32" (ByVal hHandle As Long,ByVal dwMilliseconds As Long) As Long
Private Declare Function CloseHandle Lib "kernel32" (ByVal hObject As Long) As Long
Private Declare Function OpenProcess Lib "kernel32" (ByVal dwDesiredAccess As Long,ByVal bInheritHandle As Long,ByVal dwProcessId As Long) As Long
Private Sub Command1_Click()
    Dim i As Long
    Dim r As Long
    Dim p As Long
    i = Shell("NOTEPAD.EXE",vbNormalFocus)
    p = OpenProcess(&H100000,False,i)
    r = WaitForSingleObject(p,-1)
    r = CloseHandle(p)
    MsgBox "记事本已经关闭"
End Sub

Private Declare Function OpenProcess Lib "kernel32" (ByVal dwDesiredAccess As Long,ByVal dwProcessId As Long) As Long
Private Declare Function GetExitCodeProcess Lib "kernel32" (ByVal hProcess As Long,lpExitCode As Long) As Long
Private Declare Function CloseHandle Lib "kernel32" (ByVal hObject As Long) As Long
Private Sub Command1_Click()
    Dim pid As Long
    Dim ExitCode as Long
    pid = Shell("c:\a.bat",vbNormalFocus)
    hProcess = OpenProcess(&H400,0,pid)
    Do
        Call GetExitCodeProcess(hProcess,ExitCode)
        DoEvents
    Loop While ExitCode = &H103
    Call CloseHandle(hProcess)
    MsgBox ("运行结束")
End Sub