1.  Browser
You'll need at least Netscape 4.0 or Internet Explorer 4.0 to use Searchpath. You can go to either the Netscape or Microsoft site; they will tell you what version you are currently using. If it is lower than 4.0, you'll need to download a higher (free) version from their site.

2.  Plug-ins
To experience all the effects, you'll need the Shockwave Flash plug-in, a free application that enhances your browser and makes this site interactive. If you can see the animation below

you already have the plug-in. If you can't see anything, go to the Macromedia Flash Player Download Center and follow their downloading directions. Or, you can click on "Non-Flash Version", whenever you get to a Flash page.

To view some of the exercise files you will also need the Adobe Reader. If you do not have the reader installed on your computer click on the icon noted below to download a free copy.