ZP4 DVD-ROM Contents

Each ZP4 disc contains:

  • Current and complete ZIP + 4® and DPV® databases licensed from and maintained by the Postal Service™.
  • Windows CASS Certified™ address correction engine supporting Dynamic Data Exchange (DDE) and Dynamic Link Library (DLL) interfaces.
  • Windows applications, including source code, for interactively searching, browsing, and exporting the ZIP + 4 database.
  • Windows applications (both interactive window-based and unattended command line-based), including source code, for scrubbing and validating address lists in open formats such as text or dBase (.DBF) files, and in proprietary database formats such as Access, Excel, FileMaker, Oracle, SQL Server, and many others.
  • A dedicated web server, including source code, demonstrating an HTTP interface to ZP4 with HTML and XML output.
  • Source code for OLE/ActiveX/COM servers (both in-process and out-of-process) and clients interfaced to ZP4.
  • Visual Basic and VB.NET source code demonstrating direct Visual Basic-to-ZP4 address correction.
  • C and C# source code demonstrating how to call ZP4's address correction interface.
  • Delphi source code demonstrating direct Delphi-to-ZP4 address correction.
  • Sample HTML, Active Server Page VBScript code, and ISAPI source code, demonstrating Web interfaces to ZP4.
  • Visual Basic source code for an ActiveX drag-and-drop control interface to ZP4, including a sample client.
  • Source code for networked address correction clients and servers using UDP protocols.
  • Access database and source code demonstrating direct Access-to-ZP4 address correction.
  • FoxPro database and source code demonstrating direct FoxPro-to-ZP4 address correction.
  • FileMaker database and source code demonstrating direct FileMaker-to-ZP4 address correction.
  • Paradox database and source code demonstrating direct Paradox-to-ZP4 address correction.
  • Visual Basic for Applications scripts demonstrating direct Word-to-ZP4 address correction.
  • Java source code demonstrating Java-to-ZP4 address correction.
  • A sample spreadsheet demonstrating direct Excel-to-ZP4 address correction.
  • Text-file lists for all city, state, county, and five-digit ZIP Code™ data.
  • Windows application and source code for searching, browsing, and exporting the five-digit ZIP® database.
  • TrueType barcode fonts so any Windows application can display or print postal barcodes (POSTNET or "intelligent").
  • Step-by-step tutorials, including over 100 screenshots.
  • Numerous additional utility programs and documentation files.

    An optional companion CD-ROM contains the necessary software for sorting and printing barcoded mail, including the generation of the required forms and reports so your mail qualifies for certain bulk mail discounts.

    The ZP4 address correction engine will automatically use the LACSLink® database to convert rural box addresses to street names, renumber Post Office™ boxes, and rename streets. The eLOT® database is automatically used to determine carrier-casing order. The Geo database is automatically used to determine ZIP + 4 latitudes and longitudes and Census tract and block numbers. The SuiteLink™ database is automatically used to determine business address secondary (suite) information. The DirectDPV™ database is automatically used to speed up address reprocessing. The RDI™ database is automatically used to determine residence vs. business addresses.


  • How to get your own copy of the address database.
    Semaphore Corporation is a non-exclusive licensee of the United States Postal Service®. The prices of Semaphore Corporation products are not established, controlled or approved by the Postal Service. The following trademarks are owned by the United States Postal Service: CASS Certified, DirectDPV, DPV, eLOT, LACSLink, Post Office, RDI, SuiteLink, ZIP, ZIP Code, ZIP + 4, Postal Service, and United States Postal Service. [DA#4.07]