Seems to be flawed in Windows at least, set it to Komodo Edit and tried to open one of the python text files and it fell flat on its face because it doesn't like spaces in directory name (yep its only been 20 years since spaces have been allowed in DOS/Windows directories,guess too soon for it to be supported). Editing the poser ini didn't work. Possibly leaving it blank and associating py file extension with the editor might work better but I've kind of lost interest in hunting down all functions Microsoft have hidden in W7 and W8 that were easily available in XP.