I am the Admin of a Group of companies and one of our user asked me to install Flash Player.
After entering the password few times and being denied, I noticed that the username "Admin" which has been auto-selected and is not changeable isn't working for our case. To access the server login of that department for us it would be something like SRS\Admin, but we have no option to change the username at the login !!
Also, it might be worth looking at the Flash Player System Administrator's guide for recommended strategies on managing Flash Player in an enterprise environment.