I'd not call it common. Back in the days of old (windows 3.1), I did that to extract dictionary entries - had to control the interface with wm_click too. There

I'd not call it common. Back in the days of old (windows 3.1), I did that to extract dictionary entries - had to control the interface with wm_click too. There was way more encoding than notepad shown in the example, end result was rft. The basic principle is that it was possible to make the process load a DLL.