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This APPNOTE specification may be referenced in other specifications that may benefit from this technology providing the authors of those specifications work to ensure the on-going interoperability of this format. Some ZIP technology is covered by patents or pending patents. If your application requires use of ZIP technology that is covered under a patent, PKWARE does provide reasonable and non discriminatory licensing. To submit requests for information or enhancements please email  To review or comment on proposed additions that may appear in the next, or future, editions of this format, view Proposed ZIP Format Specification Additions.

If you would like to be updated on the developing .ZIP standard, please join the PKWARE APPNOTE subscription service. For additional information on the APPNOTE, see our Publication Policy.