My company's firewall prohibits me from downloading an e-book. Many companies have firewalls that make it impossible for employees to download any kind of file from the Internet. You can have your e-book activated, and readable, on up to two computers. For example, you can have access to the same e-book on your laptop and your desktop. You will need to have Microsoft Reader installed and activated on each computer on which you plan to read your e-book.
Many publishers require powerful copy protection for their e-book titles.
In order for you to be able to purchase and download e-book titles that have been secured for distribution, you first need to activate your Microsoft Reader. Just as a credit card typically must be activated by a bank before use, your Microsoft Reader needs to be activated before you can purchase and read e-books packaged for secure distribution. It uses a Microsoft Passport account number and information unique to your computer to protect e-book titles against unauthorized copying. Also downloaded during this process is the Activation Certificate, which certifies your copy of the Microsoft Reader as being enabled for viewing protected content. This security provides you with access to many premium e-book titles that have been copy protected for distribution.