About Xceed Zip for x64

A High-performance, feature-rich ZIP/UNZIP component with AES encryption for the x86-64 architecture.

Xceed Zip for x64 is an easy to use ActiveX/COM data compression library built for x86-64 architecture. It features Zip, unzip, updating, converting, disk and memory streaming, AES encryption, no 4GB or file limit, various compression algorithms, filtering, split/spanned/self-extracting zip files, and much more.

Xceed Zip for x64 Features

Compression & Zip file technology

  • Supports WinZip 9.0 (and up) compatible AES strong encryption.
  • Fast, low memory usage compression engine.
  • 100% compatible with the PKZIP 2.04g format.
  • 100% compatible with the PKZIP 4.5 format.
  • Supports the Zip64 zip file format allowing the creation of Zip files of practically unlimited size (no 4 GB limit).
  • Supports the BZip2 (BWT) compression method for 15% to 20% better compression than Deflate on many popular file types, especially XML data.
  • Provide WinZip 12 compatibility, supporting the LZMA algorithm for improved compression in certain situations. Note: Zip files using WinZip 12’s special JPEG recompression feature are not supported.
  • UTF-8 character encoding in headers for improved support of international characters in filenames and comments is provided.
  • Supports the Deflate64TM compression method, an industry standard improvement to regular Deflate.
  • Zip files can contain any number of files (no 65535 file limit).
  • Regular, spanned, and self-extracting zip files created by Xceed Zip can be used by any of today’s existing unzipping applications, and vice-versa.
  • Stores and retrieves the latest zip file format extensions, allowing Unicode filenames and NT file attributes, extra time stamps, and security permissions to be stored in the zip file.
  • No need to repair corrupted zip files. Xceed Zip automatically tries to recover from errors and reports any inconsistencies found in the zip file while unzipping.

Major operations

  • Zip files or memory buffers into new or existing zip files.
  • Unzip files to disk or directly to memory.
  • Compress and decompress strings or buffers completely in memory.
  • All compression and decompression modes support streaming and encryption.
  • Create fully customizable self-extracting zip files.
  • Convert any type of zip file (regular, spanned, multi-part, self-extracting, or spanned self-extracting) into any other type of zip file.
  • Reads and writes zip files that span multiple disks.
  • Reads and writes multi-part zip files directly to hard drive.
  • Update one zip file from another one’s contents or merge two zip files together.
  • Optional background processing so your code can continue execution while Xceed Zip is working.