Curiosity: what means "mmsnothread"; and why might I need it?

[dinkypumpkin]

On 21/06/2014 00:41, Jeremy Nicoll - ml get_iplayer wrote:
> Looking at the get_iplayer code (but with non-expert perl eyes) I get the
> impression that the file will be read from if it is present, but nothing
> actually within get_iplayer creates it - is that right?

System options file is not required.  For Windows, if you use the 
installer you have one and if you don't, you don't.