64-bit x64 (alternative MSI installer) 7-Zip for 64-bit Windows x64 (Intel 64 or AMD64) Download 7-Zip 9.20 (2010-11-18) for Windows: Link Type Windows Description. PKZIP & SecureZIP Home. Desktop and Mobile Windows Desktop. FAQS - Windows Desktop. How to articles for PKZIP & SecureZIP for Windows Desktop. How to articles for ZIP Reader by PKWARE. How to Videos for PKZIP & SecureZIP Windows Desktop. Knowledge base for PKZIP.
PKZIP for Windows
Version 2.70 is the latest version of PKZIP for Windows and is used for users using Microsoft Windows and includes some of the below features.
- The ability to create self extracting EXE files.
- Support for ZIP, TAR, GZIP, MIME, BinHex, UUecode, and XXencode.
PKZIP for DOS
Version 2.50 is the latest version of PKZIP for DOS and is used at the command line of MS-DOS and includes the below features.
- Supports long file names.
- Capability of compressing over 16,000 files.
- Additional compression options.
- Continues to use 2.04g command line syntax.
- Y2K compliant.
Technical Support
PKZIP for Windows
Currently, no known issues.
PKZIP for DOS
How do I ZIP files that are larger than one diskette onto multiple diskettes?
To do this, you would use the below syntax.
Example:
The -& is the important part of the above line and is telling pkzip to place your files onto multiple disks.
Will I be able to unzip a program with WinZip I zipped in PKZIP?
Assuming the file was zipped correctly, any file with the .zip extension can be pkunziped, and unzipped in WinZip or another compression utility.
Do you have a listing of available switches used at the command line?
Usage: PKUNZIP [options] zipfile [@list] [files...]
| -c[m] | Extract files to console [with More]. |
| -d | Restore/create directory structure stored in .ZIP file. |
| -e[c|d|e|n|p|r|s] | Extract files. Sort by [CRC | Date | Extension | Name| Percentage | Reverse | Size]. |
| -f | Freshen files in destination directory. |
| -j|J<h,r,s> | Mask|don't mask <Hidden/System/Read-only> files (def.=jhrs). |
| -n | Extract only newer files. |
| -o | Overwrite previously existing files. |
| -p[a/b][c][#] | Extract to printer [Asc mode,Bin mode,Com port] [port #]. |
| -q | Enable ANSI comments. |
| -s[pwd] | Decrypt with password [If no pwd is given, prompt for pwd]. |
| -t | Test .ZIP file integrity. |
| -v[b][r][m][t] | View .ZIP [Brief][Reverse][More][Technical] sort by [CR.|. |
| [c,d,e,n,o,p,s] | Date|Extension|Name|natural Order(default)|Percentage|Size]. |
| -x<filespec> | Exclude file(s) from extraction. |
| -$ | Restore volume label on destination drive. |
| [email protected] | Generate list file. |
| -3 | Disable 32-bit instruction usage on 80386 or higher CPU's. |
| -^ | Echo the command line. |
| -+ | Disable EMS (expanded memory) usage. |
| -- | Disable XMS (UMB/HMA memory) usage. |
| -) | Disable 32 bit DPMI usage. |
You can default any of these options with the PKUNZIP environment variable. Consult the file ADDENDUM.DOC for further information.
PKWARE, Inc
9025 N. Deerwood Drive
Brown Deer, WI 53223
How PKZIP and most other compression software work
How does PKZIP work? PKZIP uses several methods of compressing data by using seek out and eliminate redundant information within a file. With the redundant material removed, the file takes up less space. And because the information was redundant, PKUNZIP can restore that material when it unzips your file.
For example, consider the line below:
Normally the above statement would take 44 or more bytes of disk space because of the amount of words in the document. But this simple line contains a surprising amount of repetition. The letters 'in' and the space after the word 'in' are repeated at the ends of the words 'rain' and 'Spain' in the sentence. The letters 'ain' occurs four times, the two-character sequence 'n' plus a space occurs twice, and the three-character sequence 'he' plus a space occurs twice. What if you replaced each duplicate occurrence of one of these strings with a special code, called a token, that would stand for the duplicated numbers? Each token would contain a much shorter number combination that told you how many characters (including spaces) to count backwards in the string and how may characters were duplicated. Then the line would look like:
Data compression takes advantage of the way data is represented in the computer. The string's original form can be reduced to representative tokens. If the token is used repeatedly in a file (long strings of the character 0, for instance), that information can be stored in fewer bytes than the original string. Later, the representational list of tokens (compressed file) can be expanded to the original form ('uncompressed' file), without losing any of the original data.
The key to data compression is the ability to search a string of bytes, identify any sequences of repeated data, and represent the repeated data as tokens. Binary files often have long strings of zeros, and repeated sequences of machine data, which can be efficiently compressed as representative tokens.
7-Zip (or Seven Zip) is a archiver with a very high compression ratio with support for several other popular formats like RAR, ZIP, CAB and Linux formats like GZIP, BZIP2 and Redhat RPM. 7-Zip can also compress ZIP files up to 10% better than WinZip. With a fully functional user interface, 7-Zip can also be run from the command line with powerful options.
It also contains a file manager, a FAR manager plug-in, support for almost 50 languages and native 7Z support.
Seven Zip is great in that it's a completely free alternative to other archivers like WinRAR and WinZip. Even though it's a powerful program, both its simple side and more advanced side shine through. It's also great for those (like us, here at CC) who move between Linux and Windows.
7-Zip can create 7Z archives and create ZIP files.
Features and highlights
Peazip Windows
- High compression ratio in 7z format with LZMA and LZMA2 compression
- Compress and Decompress: 7z, XZ, BZIP2, GZIP, TAR, ZIP and WIM
- Decompress only: ARJ, CAB, CHM, CPIO, CramFS, DEB, DMG, FAT, HFS, ISO, LZH, LZMA, MBR, MSI, NSIS, NTFS, RAR, RPM, SquashFS, UDF, VHD, WIM, XAR and Z
- For ZIP and GZIP formats, 7-Zip provides a compression ratio that is 2-10 % better than the ratio provided by PKZip and WinZip
- Strong AES-256 encryption in 7z and ZIP formats
- Self-extracting capability for 7z format
- Integration with Windows Shell
- Powerful File Manager
- Powerful command line version
- Plugin for FAR Manager
7-Zip 19.00 on 32-bit and 64-bit PCs
Peazip X64
This download is licensed as freeware for the Windows (32-bit and 64-bit) operating system on a laptop or desktop PC from file archivers without restrictions. Seven-Zip 19.00 is available to all software users as a free download for Windows. As an open source project, you are free to view the source code and distribute this software application freely.
Filed under:Peazip Download Windows 10
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