'以下代码,经测试无误。希望能解决楼主的问题。
Private Sub ctListBar0_ItemClick(ByVal nList As Integer, ByVal nItem As Integer)
Dim strArgument As String
strArgument = ctListBar0.ItemText(nList, nItem)
Select Case strArgument
Case "计算器"
Dim stAppName As String
stAppName = "calc.exe"
Call Shell(stAppName, 1)
Case "发货查询"
DoCmd.OpenForm "窗体1"
Case "支付查询"
DoCmd.OpenForm "窗体2"
Case "退出系统"
DoCmd.Close acForm, Me.Name
Case Else
End Select
End Sub