VCLZip Pro 4 is the latest version of VCLZip. This release adds strong AES encryption capabilites compatible with PKZip and WinZip.

VCLZip is a full featured, native Delphi VCL zip/unzip component and is now available for Delphi 4, 5, 6 , 7, 2005, 2006, 2007 and 2009, as well as BCB 4, 5, 6, 2006, 2007 and 2009. Some of the Features include:

• Create zip files fully compatable with PKZip
• Completely native Delphi VCL (NO DLL's!)
• Full support for Disk Spanning Archives
• Zip directly from streams to zip files
• Unzip directly to streams from zip files
• Stream to Stream compression and extraction
• Zipping from and Unzipping directly to memory buffers
• Integrity checking of individual files in archives
• Save Relative Path Information!
• Extract relative paths even when archive contains full path info!
• Create and read Zip and File Comments
• Correctly attach Self Extracting Zip Stubs (16 bit and 32 bit distributable windows sfx stubs included, with source)
• Create customizable 32bit SFX files, with or without existing zip files
• Complete support for password protected, encrypted files (encrypts as it zips)
  • Original PKZip standard encryption
  • AES (AE-2) 128, 192, and 256 bit encryption
• Complete support for long filenames even in Delphi 1!!
• Exclusion List - Determine what types of files should not be in your zip files
• NoCompress List - Determine what types of files should just be stored in your zip files
• Determine your own temp directory
• Lots of events
• Includes comprehensive Zip Utility with source as demo
• Includes a stream zipping demo
• No Royalties
• Zip64 capabilities, properties, methods and events:
  • Uncompressed, Compressed, and Archive file sizes can be up to 2^63-1 bytes in length.
  • You can compress up to 2147483647 files into an archive. This is compatible with PKZip's Zip64 format.
  • Up to 999 split or spanned archive parts
  • If a file does not extend beyond any of the original limitations (filesizes of 4 gig or 65535 files) then no Zip64 format information is included in the archive.
  • property isZip64 - tells you when you are working with a zip file that is using Zip64 format.
• Uses the latest version of ZLib 1.2.3 for compression and decompression
• Faster processing due to linking to Zlib 1.2.3 object files for compression and decompression routines.
• Supports Delphi 4, 5, 6, 7, 2005, 2006, and 2007
• Supports BCB 4, 5, 6, 2006, and 2007
• Even Delphi 4 and 5 and BCB 4 and 5 support Zip64 format
• Blocked Zip Files (spanned zip archives split onto hard drive)
  • Now completely compatible with PKZip and WinZip split archives file naming format.
  • For backwards compatability you can tell VCLZip to use the old VCLZip filenaming format by using the BlockMode property.
• Event OnGetNextStream - Allows you to zip from multiple streams when using the ZipFromStream method. This improves performance since repeated calls to ZipFromStream causes the archive to be updated on each subsequent call.
• NOTE: VCLZip Pro does not support the Deflate64 compression.
• Price is $99.95 per developer for the first year of support. Annual renewals are only $79.95.

VCLZip Pro 3 to VCLZip Pro 4 Upgrade Policy

If you are a currently registered user of VCLZip (Pro or Lite), before continuing, you should contact VCLZip-support@4warding.com to get a coupon number to get your discount for upgrading to VCLZip Pro 4. With the discount, VCLZip Pro 4 will only be $79.95 (the renewal price). Be sure to enter the coupon number when registering to get the discount.