Configuring Dreamweaver to detect the file compare application on Windows takes a few quick steps.
Select the File Compare category.
Figure 4. The File Compare category in the preferences
Click the Browse… button and specify the path of the "diff" or merge utility. See the screen shot below for the path to the EXE file.
Figure 5. The File Compare category in the preferences pointing to the file compare utility executable
The next section of this article covers installing and setting up a diff/merge utility on Mac OS X. If you are not a Mac user, skip to the section on Performing Your First File Compare.