A topic root directory will contain either your selected web pages from a web site or from many web sites addressing the same subject. To create a topic root directory:
You can create other sub-directories that will contain Internet shortcuts related to sub-topics as you see fit. For example, if you plan to buy a sports car and you search the Internet about various available models, you might have "Sport Cars of 2002" as main topic, you might name the related directory: "SportCars2002". Sub topics might be "Manufacturer Descriptions", "Magazine Evaluations", "Customer Comments" and "Agencies Evaluations". You want to keep these imported web pages under their respective sub-topics but you want to make the hyperlinks of all these pages to operate locally. Because of the last point, you will specify only "SportCars2002" as topic root to WebGrabber.