When you work on web pages, you need to use the files in two ways: 1) you need to make changes to the files; 2) you need to view your changes. However, you need to use three programs to do this.

1. The web file lives in a folder on your hard drive. Windows keeps track of these files and folders. From Windows, you can open files, delete files or move files to other folders. However, your web site has links to other folders.
   
   If you move your files around in Windows, those links will be broken. You will need to fix the links in code. However, if you are copying your whole site to another place such as a USB drive, a CD or another place in Windows; it's best to move it in Windows.
   
2. You will use some program to create or make changes to your HTML files. You could use a text editor, such as Notepad or Simple Text. Or, you could use web development software, such as Dreamweaver. Dreamweaver needs to know where to find the files that are your web site.
   
   When you use Dreamweaver to open your web files, it keeps track of your links. If you move a web file to another folder within your site, Dreamweaver will fix any broken links caused by the move.
   
3. Notepad or Simple Text can't show you want your web site looks like. All they can do is allow you to change the text; they can't interpret the code to show a web page. You need a browser to show you what the page looks like. However, the text editor has the page loaded in it's own chunk of memory. Your browser can't get to the memory being used by the text editor. So, when you look at the page in the browser, you will have to save your work and reopen the page from where it is stored on your hard drive.
   
   Dreamweaver is a WYSIWYG program. It pretends to let you see what the page looks like, but it's not a browser. That means that it doesn't always show you what's really happening with your page. To get a real view of your page, you need to go to a real Browser.
   
   Dreamweaver is different from a text editor. It was written with a way for the Browser to be able to get to the page while it's still in memory. That means that you don't have to Save before you can look at the file.