PROve is a fully automated retrieval software that finds answers to questions from the open sources on the Web. First of its kind, PROve combines a propriatery language understanding technique based on artificial intelligence with an automated Web crawling function (similar to meta search or robots.) Answering capability enables you to read original extracts (paragraphs) that contain answer to the question. Answers pop up on your screen in real time and sort themselves in the order of quality. Crawling (navigation) capability frees you from the tediuos efforts required in conventional search. Installed on your PC, you can park hundreds of questions to be searched periodically, and be notified when answers emerge on the Web. If you have specific questions in your mind about your suppliers, competitors, creditors, debtors, partners, if you wonder about your reputation, or your customers' complaints, and if you want to be alerted when answers to your questions emerge on the Web, PROve 4.0 is an ideal tool for you. Use it for marketing activities, or research projects. Use it also to search your LAN documents.