Useless answer, nor does Apple IO's, Stevie hated Adobe, nor does Android support Flash, yet you have made an effort for these platforms, not windows 8 phone.
Chris works for Adobe and gave the corporate answer. He has written some extemely good posts on installing Flash. See the FAQs for examples.
Google 'install flash player windows 8 mobile phone' and you will find some interesting info.
' Adobe Flash, one of the most popular cross platform browser plugin lost its interest among developers in the recent days. The first reason behind it was the rise of HTML5 adoption by major companies like Microsoft, Apple and Google. The second reason was their solution for smartphones never really made its foothold. Apple and Microsoft never allowed Adobe Flash in their smartphone OS because of its POOR PERFORMANCE AND HIGH POWER REQUIREMENTS. But Adobe brought Flash for open Android platform and even worked with OEMs to pre-install it on devices. After the poor adoption rate in the market, they announced last November that they are discontinuing their development of the Flash Player for mobile browsers.'
No Adobe staff will ever post such answers.