I have installed both the default version of Flash Player and the Version for Windows Vista and Internet explorer, both with and without installing Google Chrome. When I goto a site I.E. Youtube with Windows explorer I get a message that I need to install Flash player. If I use Chrome it works fine. Before each new instalation I uninstall the previous Install and reboot the system. For some reason Flash player seems to only work with Chrome now. I just started having this problem Wednesday. I have made all the sugested modafications to Windows Explorer. Any Idea what is going on?