Step 2...
How to install the DjVu Browser Plug-in:
1. After download is completed, close all programs and find the downloaded DjVu file in your computer with Windows Explorer.
2. Change the downloaded file extention from .xxx to .exe (DjVuBrowserPlugin45.exe)
3. Then click on the DjVu file name to install.
4. An installation window opens, click on Run.
5. If the installation program gives you the option to remove a previous DjVu Plug-in, do so. Then repeat Step 3.
6. After installation is completed, open the bopomofo site to read DjVu books.