Abstract: The present invention provides a flash disk of phone book, it comprises an autorun part, a phone book part and a free use part. The autorun part includes programs for displaying related information on a monitor of a computer when a subscriber plugs the flash disk of phone book into the computer. The phone book part comprises many webpages and phone numbers of many companies and individuals for being displayed on the monitor of the computer. XML or HTML can be used for developing webpages. The free use part is just the same as an ordinary flash disk, and can be used by the subscriber freely. The phone book part sets up an ActiveX component on each webpage of the companies and individuals. Each ActiveX component includes VoIP related software and a service phone number of a company or an individual.

Abstract: The present invention provides a warranty service system. It comprises a flash disk for warranty service, a computer, Internet and a registration center. The registration center is a computer server having a web address and a data base. A customer plugs the flash disk for warranty service into the computer and links with the registration center via Internet to achieve a warranty registration. The warranty service system of the present invention further comprises an information center, which is a computer server having a web address and a data base. The information center has two functions: one is to provide product advertising information to the customer; the other is to connect a service phone of a company for the customer.