Downloadable software for use in mailing, shipping and delivery, for performing electronic transactions related to computerized on-line retail store and mail order services in the field of postage stamps, philatelic products, stationery products and gifts, for performing computerized tracking and tracing packages in transit, for enabling the provision of directory information regarding postal locations and postal codes and for arranging pick-up, transportation, and delivery of packages, letters and documents; Software in the mailing and delivery field, namely, computer software for tracking and tracing of mail, address corrections, postal rate calculations, generating mailing and delivery labels, and for locating postal codes and user manuals sold therewith; multi-line optical character readers, remote video encoders; Computer software for use in providing secure transmissions and tamper-detection capabilities in the electronic transmission of mail, messages, documents and data and for use in the creation, printing, shipping and delivery of parcels and documents through use of the internet; computer software for use in the authentication of a digital signature, data encryption, secure communications, secure storage, and verification of electronic transactions, documents or communications over the internet or other computer network, and instructional and user manuals sold in connection therewith; Electronic publications, namely, an instructional manual featuring information and instruction on mail and delivery services recorded on computer media; Downloadable electronic publications in the nature of an instruction manual in the field of mail and delivery services; Computer operating software used to operate machines for processing of envelopes, flats, letters and periodicals; Computer software to allow users to perform business transactions via the internet; software in the mailing and delivery field, namely, computer software for use in receiving and printing information-based indicia; software in the mailing and delivery field, namely, computer software for supplying information-based indicia that may be downloaded from the internet; computer hardware, namely, a computerized postal scale; computer document printers for supplying information-based indicia; software in the mailing and delivery field, namely, computer software for use in operating and maintaining a computer database in the field of information-based indicia; computerized or digital postage meters in the nature of an information-based indicia evidencing apparatus, and digital information-based indicia meters, and testing apparatus therefor