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- WinZip(R) version 9.0 SR-1
- Copyright (C) 1991 - 2004 WinZip Computing, Inc.
- All Rights Reserved
-
- WinZip 9.0 SR-1
- ---------------
- WinZip 9.0 SR-1 is a maintenance release of WinZip 9.0. This
- version of WinZip has been enhanced to warn you about some of the
- most common situations in which you could become infected by a
- virus compressed inside a Zip file. Please see the topic
- "Potentially Unsafe File Types" in the WinZip help file for full
- information about this change.
-
- WinZip 9.0
- ----------
- Improvements in WinZip 9.0 concentrate on its core functionality:
- compression, capacity, and a new, advanced data encryption
- capability. Using WinZip 9.0, you can compress more data,
- compress it better, and protect your confidential information with
- far greater security.
-
- Details of these and other enhancements follow.
-
-
- Advanced encryption
- -------------------
- WinZip 9.0 supports 128- and 256-bit key AES encryption, which
- provide much greater cryptographic security than the traditional
- Zip 2.0 encryption method used in earlier versions of WinZip.
-
-
- WinZip 9.0's advanced encryption (FIPS-197 certified) uses the
- Rijndael cryptographic algorithm which, in 2001, was specified by
- the National Institute of Standards and Technology (NIST) in
- Federal Information Processing Standards (FIPS) Publication 197
- as the Advanced Encryption Standard (AES).
-
- After a three-year competition, the AES was announced by NIST as
- an approved encryption technique for use by the U.S. government,
- private businesses, and individuals. When properly implemented
- as a key component of an overall security protocol, the AES
- permits a very high degree of cryptographic security, yet is fast
- and efficient in operation.
-
- WinZip's AES encryption is just as easy to use as traditional Zip
- 2.0 encryption: all you have to do is select the encryption
- strength and specify your password.
-
- Note: recipients to whom you send AES-encrypted Zip files must
- have a compatible Zip file utility in order to decrypt the files.
- We have published the full specification for creating
- WinZip-compatible AES-encrypted Zip files, and we expect that
- other Zip file utility vendors will provide support for the
- format.
-
-
- Greater capacity
- ----------------
- In addition to supporting the original Zip file format, WinZip
- 9.0 also supports the 64-bit extensions to the Zip file format.
- The extended format lets you store all the data you need in Zip
- files of virtually unlimited size.
-
- The original Zip file format limited the number of member files
- in a Zip file to 65,535, and the maximum size of both the Zip
- file itself and any member file to 4 gigabytes. For all
- practical purposes, the 64-bit extended format eliminates all
- these restrictions. Using the extended format, the member file
- size, Zip file size, and number of member files you can add to a
- Zip file are limited only by your system's resources.
-
- WinZip remains fully compatible with the older file format and
- uses the original format whenever possible. WinZip uses the
- 64-bit extended format only when the limits of the original
- format are exceeded.
-
-
- Improved compression
- --------------------
- WinZip 9.0 supports the "enhanced deflate" compression method.
- This compression method provides greater compression and reduces
- the size of your Zip files, saving you data transmission time and
- valuable disk space.
-
- Note: versions of WinZip prior to WinZip 8.1 will not be able to
- extract files compressed with this new method.
-
-
- Other Changes in WinZip 9.0
- ---------------------------
- - In addition to the new AES encryption technology, WinZip 9.0
- provides a number of usability enhancements that make it easier
- for you to use encryption. For example, you can now easily
- encrypt the files that are already in a Zip file; previously,
- files could be encrypted only while they were being added to
- the Zip file.
-
- - WinZip 9.0 makes it easier than ever for you to find the WinZip
- information you need by presenting help information using the
- newer Microsoft "HTML Help" facility. HTML help has a more
- attractive appearance and includes many usability improvements.
-
- - WinZip 9.0 gives you easier access to your most important file
- locations in many WinZip Classic dialogs. Key dialogs such as
- New Archive, Open Archive, Add, and Extract contain "places
- bars" when running under Windows versions that support them.
- The places bar provides quick access to your top-level
- locations, usually My Computer, My Network (or Network Places),
- My Documents, Recent Documents (or History), and the Desktop.
-
- - WinZip 9.0 lets you quickly find out what is in your Zip files.
- In My Computer and Windows Explorer, the tooltip that is
- displayed when you position the mouse pointer over a Zip file
- now contains information about the contents of your archives by
- listing up to 25 of the files and folders in the archive.
-
- - When installed under Windows XP, WinZip 9.0 installs and
- registers for all users. This change makes it easier to
- install WinZip in business or home environments where more than
- one person uses a computer.
-
- - WinZip 9.0 contains a number of changes to improve performance
- and efficiency:
-
- - The "Use for removable media only" option for the working
- folder (in the Folders tab of the Configuration dialog) is
- now set by default. This results in faster Zip file
- creation in most cases.
-
- - By default, WinZip no longer automatically displays comments
- when opening Zip files that contain comments.
-
- - In Windows XP network environments, the performance of
- WinZip's Windows Explorer extensions has been improved.
-
- - Several changes have been made to improve performance when
- extracting files from archives.
-
- - WinZip 9.0's Classic interface has been improved:
-
- - The Extract dialog has been redesigned to display more
- folders in the folder tree view and to provide more space
- for typing folder names.
-
- - Placing the mouse pointer over a truncated file name (one
- that won't fit in the available space) displays a tooltip
- showing the complete file name.
-
- - Because it is an action rather than a setting, the option to
- "Restore all caution messages" in the Miscellaneous tab of
- the Configuration dialog has been changed from a checkbox
- to a pushbutton.
-
- - The main WinZip window now contains a watermark when used
- under Windows XP with an XP-style theme.
-
- - WinZip 9.0 no longer triggers false warnings in certain
- security tools that search for programs that use the "zlib"
- compression library. zlib is not a WinZip component.
-
- ###
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