Default invoice filename

[Adam]

Hi All,

Is it possible to alter the default invoice filename when I export it as 
PDF? I'd like to add my business name to the start of the filename.

Googling has revealed this:
http://gnucash.1415818.n4.nabble.com/SOLVED-Default-file-name-of-invoice-from-pdf-printer-td4660673.html

But I am using Windows so can't use gconf-editor. Also, I can't find a 
"gconf .xml" file.

GNUCash 2.6.3 git rev 166cbb7+ on 2014-04-01

Thanks,
Adam