Hello and welcome to Bleepingcomputer.
Flash player is not supported on 64 Bit operating system installations.
Check out this thread from the Adobe web site forums.http://forums.adobe.com/thread/600332?deco...FullThread=true
Hope this answers your questions.
Just so you know, a lot of programs like Java and Flash player do not work with Internet Explorer 9 Beta either, nor will they work with the final release, Internet Explorer is designed to work with future web sites that will no longer need Java or Adobe Flash player installed to do what those programs were designed to do with Internet Explorer 8.
Its just a matter of the web sites out there updating their sites to accommodate the new Internet Explorer 9 hardware acceleration.