poopup

Follow code below I have question.Why it's not happen after I run code $Domain = "xxx" $StrPassword = "123" $StrUsername = "user" $file = FileOpenDialog($message, @WorkingDir& "\", "Files (*.exe;*.msi)", 1 + 4 ) If @error Then MsgBox(4096,"","No File") Else RunAs($StrUsername, $Domain, $StrPassword, 0, $file, @WorkingDir) EndIf It nothing happen how can i do? Thanks