I personally have not had problems with Flash, but our science teacher has. We have a network school-wide called the VMWare. This is an online network where one can connect to a Windows desktop remotely. Each student and teacher has an ID. From what I understand, this program is very pricey. I think we pay a certain price for each user and then a price for the amount of people we can have on at once. Currently, there are not enough shares for the faculty and whole middle school to be on at once without shutting the network down. It works for us though since really only one teacher needs one class to use it at a time. This program can be used on iPads and on Microsoft based desktops/laptops.