用vb shell 先打开qq.exe 当qq.exe主动关闭的同时，如何让vb执行另外一个命令

用vb shell 先打开qq.exe 当qq.exe主动关闭的同时，如何让vb执行另外一个命令

例如，我要实现 关闭qq.exe 的时候 打开 notepad.exe
或者，要实现 关闭的qq.exe 的时候，如何关闭已经打开的另外一个exe

谢谢

给你个示例,添加一个计时器,一个命令按钮,添加如下代码:
Dim fPath As String
Private Sub Command1_Click()
Shell fPath, vbNormalFocus
Timer1.Enabled = True
End Sub

Private Function IsRun(ByVal filename As String) As Boolean
On Error GoTo myerr
Dim mytempfile As String
mytempfile = App.Path + "\mytemp.bak"
FileCopy filename, mytempfile
Kill filename
IsRun = False
FileCopy mytempfile, filename
Kill mytempfile
Exit Function
myerr:
Select Case Err.Number
Case 75
Kill mytempfile
IsRun = True
Exit Function
Case Else
MsgBox Err.Description

End Select
End Function

Private Sub Form_Load()
Timer1.Interval = 1000
Timer1.Enabled = False
Command1.Caption = "运行QQ"
fPath = "C:\Program Files\Tencent\QQ\qq.exe"
End Sub

Private Sub Timer1_Timer()
If IsRun(fPath) = False Then
Me.Caption = "程序已经关闭"
Shell "notepad.exe", vbNormalFocus
Timer1.Enabled = False
Else
Me.Caption = "正在运行..."
End If
End Sub

监测系统进程，当程序找不到qq.exe系统进程时，执行你所需要的代码。 需要用到api