We curently running FlashPlayer 126.96.36.199 and would like to upgrade to 188.8.131.52 by change the mms.cfg file and enable background updater. Every hour for 24 hours, then every day is too often for the default and we would like to change the default, but I see nothing in the documentation that allows this.
Even though the process is run every hour, it only communicates with our server once a day. You can find more information on this service here:
In particular, I'd recommend reading the blog posts linked in the FAQ.