[NTG-context] Windows PDF viewer with refresh?

Hi All, Sorry for the seemingly trivial question, but does anyone have any advice on the best PDF viewer to use on Windows, for use with Context? I can't even seem to find one with refresh! After years of periodic usage of Context on linux, I am now trying to configure it on a Windows system (for someone else). Any suggestions in general for setting up a decent workflow would also be very welcome. Thanks, -- John Devereux