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413 lines
17 KiB
Plaintext
413 lines
17 KiB
Plaintext
<html>
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<head>
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<title>Pocket UnZip</title>
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</head>
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<body>
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<h2>Pocket UnZip</h2>
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<hr>
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<h3>Table of Contents</h3>
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<ul>
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<li>Why use Pocket UnZip for Windows CE?</li>
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<li>Key Features of Pocket UnZip</li>
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<li>Installing Pocket UnZip</li>
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<li>Opening a Zip File</li>
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<li>Zip File Listing</li>
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<li>Properties Dialog</li>
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<li>File Comments</li>
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<li>Extracting Files</li>
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<li>Testing Files</li>
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<li>Viewing Files</li>
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<li>Encrypted Files</li>
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<li>About Pocket UnZip</li>
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</ul>
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<hr>
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<h3>Why use Pocket UnZip for Windows CE?</h3>
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<ul>
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<li>Your H/PC can now read the number one file format used
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for Internet downloads.</li>
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<li>Software venders can now distribute their Windows CE
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applications in a single compressed Zip file. </li>
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<li>Maximize your PCMCIA flash card ram storage by zipping up
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files to take with you on the road.</li>
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</ul>
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<hr>
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<h3>Key Features of Pocket UnZip</h3>
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<ul>
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<li>Handles all files created with a Zip compatible
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compression utility. This includes utilities from PKWARE,
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Info-ZIP, and many others. </li>
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<li>Easy to use graphical interface that closely resembles
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the Windows CE Explorer. </li>
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<li>Displays a detailed list of Zip file contents, including
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name, date, size, attributes, and compression statistics
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of each file. </li>
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<li>Displays comments for the each file within the Zip file,
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as well as the main comment for the Zip file itself. </li>
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<li>Supports the ability to test files, extract files, and
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view files directly from the Zip file. </li>
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<li>Supports decryption of password encrypted Zip files. </li>
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<li>It's free!</li>
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</ul>
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<hr>
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<h3>Installing Pocket UnZip</h3>
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<p>Place <strong>PUNZIP.EXE</strong> and <strong>PUNZIP.HTP </strong>(optional
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help file) into your <strong>\Windows</strong> directory on your
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H/PC.</p>
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<p>From your H/PC's <strong>Start Menu</strong>, choose <strong>Run...</strong>,
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enter "<strong>punzip</strong>", and tap <strong>OK</strong>.</p>
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<p>The first time you run Pocket UnZip, it will register itself
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as the application for handling Zip files. From then on, you can
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just double-tap on Zip files in Explorer or from your Desktop to
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open them in Pocket UnZip.</p>
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<hr>
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<h3>Opening a Zip File</h3>
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<p>There are several ways to open a Zip file.</p>
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<ul>
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<li>Double-tap on a Zip file in Windows CE Explorer or from
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your Windows CE desktop. </li>
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<li>From within Pocket UnZip, choose the <strong>Open...</strong>
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command from the <strong>File</strong> menu. You may also
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tap the <strong>Open</strong> toolbar button or press <strong>Ctrl+O</strong>.
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</li>
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<li>Pocket UnZip keeps track of the four most recently opened
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Zip files. You may quickly open one of these recent files
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by selecting the Zip file directly from Pocket UnZip's <strong>File</strong>
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menu.</li>
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</ul>
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<hr>
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<h3>Zip File Listing</h3>
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<p>Pocket UnZip's main view displays a list of files,
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directories, and volume labels that are stored within the
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currently loaded Zip file. This list can be displayed in two
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modes, normal and expanded. The normal mode is sufficient for
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most users. It contains the following information for every item
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in the Zip file:</p>
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<ul>
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<li><strong>Name</strong>: Name and path of the compressed
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file, directory, or volume label.</li>
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<li><strong>Size</strong>: Size, in bytes, that the item
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requires when uncompressed.</li>
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<li><strong>Type</strong>: Type of item.</li>
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<li><strong>Modified</strong>: Date and time that the item
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was last modified.</li>
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</ul>
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<p>Expanded mode contains all the above information, plus the
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following additional information:</p>
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<ul>
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<li><strong>Attributes</strong>: Attributes of the item.
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<ul>
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<li><font face="Courier New"><strong>V</strong></font>:
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Volume label</li>
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<li><font face="Courier New"><strong>D</strong></font>:
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Directory</li>
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<li><font face="Courier New"><strong>R</strong></font>:
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Read-only file</li>
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<li><font face="Courier New"><strong>A</strong></font>:
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Archive file</li>
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<li><font face="Courier New"><strong>H</strong></font>:
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Hidden file</li>
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<li><font face="Courier New"><strong>S</strong></font>:
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System file</li>
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<li><font face="Courier New"><strong>E</strong></font>:
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Encrypted (this file will require a password)</li>
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<li><font face="Courier New"><strong>C</strong></font>:
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Comment (this item has a comment)</li>
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</ul>
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</li>
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<li><strong>Compressed</strong>: Compressed size, in bytes,
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of the item.</li>
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<li><strong>Ratio</strong>: Compression ratio of the item.</li>
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<li><strong>Method</strong>: Compression method used to
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compress the item.</li>
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<li><strong>CRC</strong>: 32 bit Cyclic Redundancy Check
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signature of the item.</li>
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<li><strong>Comment</strong>: Optional comment string that
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was associated with the item when compressed.</li>
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</ul>
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<p>You may toggle between the normal view and the expanded view
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by selecting the <strong>Extended View</strong> option from the <strong>View</strong>
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menu, or by tapping the associated toolbar button.</p>
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<hr>
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<h3>Properties Dialog</h3>
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<p>The properties dialog is useful for viewing detailed
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information for one or more files. It is invoked by selecting one
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or more files in the file list and then choosing <strong>Properties</strong>
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from the <strong>File</strong> menu. For convenience, you can
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also tap the toolbar button or press <strong>Alt+Enter</strong>.</p>
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<p>If one file is selected, the properties dialog will show you
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detailed information about that one file and its comment.</p>
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<p>If multiple files are selected, the dialog will show you
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combined results for all the files selected. Cumulative results
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will be given for the file count, byte counts, and compression
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ratio. Merged results will be given for the compression method,
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date, CRC, attributes, and comment. For the date, all values that
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are common between the selected files (such as year), will be
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shown with their common value. All values that differ between the
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selected files will be shown as question marks. For attributes, a
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black check means that all selected files have that particular
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attribute, a gray check mark means that some of the selected
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files have that attribute, and no check mark means that none of
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the selected files have that attribute.</p>
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<p>By using the properties dialog with multiple files, you can
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determine things like... What is the total number of files or
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bytes in the Zip file? What is the total compression ratio for
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all selected files. Are all the selected files from the same
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year? Same month? How many files have comments?</p>
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<hr>
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<h3>File Comments</h3>
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<p>Zip files provide two levels of commenting. At compression
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time, users can add per-file comments, as well as one main
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comment for the entire Zip file. The per-file comments are
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usually used to give a short description of each file. The main
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comment is usually used for credits, copyright information,
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installation instructions, version numbers, etc. Pocket UnZip
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can display both types of comments. </p>
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<p>Per-file comments can be viewed in Comments column of the main
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file list while in expanded mode (see the <strong>Zip File Listing</strong>
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section) and also in the properties dialog (see the <strong>Properties
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Dialog</strong> section).</p>
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<p>The main Zip file comment can be viewed by selecting <strong>Zip
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File Comment</strong> from the <strong>View</strong> menu or by
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pressing the associated toolbar button. This option will be
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disabled if the Zip file does not contain a main comment.</p>
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<hr>
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<h3>Extracting Files</h3>
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<p>Once you have opened a Zip file into Pocket UnZip, you should
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see a list of the Zip file's contents. Select one or more files
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from the file list and then choose <strong>Extract Selected Files</strong>
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(<strong>Ctrl+E</strong>) or <strong>Extract All Files</strong> (<strong>Ctrl+A</strong>,
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<strong>Ctrl+E</strong>) from the <strong>Action</strong> menu. You may
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also use the noted shortcut keys or the associated toolbar
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buttons.</p>
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<p>An extract options dialog will appear showing you some
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statistics about the files you are about to extract and prompting
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you for some information. There are three options available to
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you.</p>
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<p>The <strong>Restore file paths</strong> option allows you to
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control whether the directory structure of the files you have
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selected to extract will be preserved. When this option is
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checked, any directory paths associated with the compressed files
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will be created, and the file will be extracted to the newly
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created directory. If this option is not checked, all files will
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be extracted to a single directory, regardless of any path
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information associated with the compressed files.</p>
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<p>The <strong>Overwrite Options</strong> allow you to tell
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Pocket UnZip what to do if a file already exists on your file
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system with the same name of a file that is about to be
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extracted. The choices are:</p>
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<ul>
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<li><strong>Prompt to overwrite</strong>: Causes a dialog to
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appear for every situation that involves possibly
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overwriting a file. This allows you to decide what files
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get overwritten on a file-by-file basis. </li>
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<li><strong>Overwrite if newer</strong>: Causes Pocket UnZip
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to automatically overwrite any files that have a date and
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time that is earlier then the date and time of the file
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being extracted. This option can be useful for updating
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files. </li>
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<li><strong>Always overwrite</strong>: Causes Pocket UnZip to
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always automatically overwrite any files without
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prompting or warning. Use with caution. </li>
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<li><strong>Never overwrite</strong>: Causes Pocket UnZip to
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automatically skip all files that already exist on the
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file system.</li>
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</ul>
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<p>The <strong>Extract To</strong> field specifies the root
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directory that should be used to extract files to. If you checked
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the <strong>Restore file paths</strong> option, then any
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directories associated with the files being extracted will be
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created under the directory specified in this field. The
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directory you enter must already exist. To create directories and
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browse for directories, use the <strong>Browse...</strong>
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button.</p>
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<p>Once you have chosen the options you wish to use, press the <strong>Extract</strong>
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button. A progress dialog will appear and the extraction will
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begin. At any time during the extraction, you may tap the <strong>Abort</strong>
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button to abort the extraction operation.</p>
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<p><strong>Note: Aborting the
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extraction operation while processing a file will likely cause a
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partial file to get extracted and saved.</strong></p>
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<p>During the extraction, you may get interrupted for one of
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three reasons. First, if an error occurs, you will be notified
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with a message box. Second, if you have chosen the <strong>Prompt
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to overwrite</strong> option and you are trying to extract a file
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that already exists, you will be prompted on how to handle the
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situation. Third, if a file being extracted is encrypted, then
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you will be prompted for that file's password (see the <strong>Encrypted
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Files</strong> section).</p>
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<p>Once the extraction is complete, the <strong>Abort</strong>
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button will change to a <strong>Close</strong> button and any
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errors or warnings will be displayed. Tap the <strong>Close</strong>
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button to return to Pocket UnZip's main screen.</p>
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<hr>
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<h3>Testing Files</h3>
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<p>Testing files is essentially the same as extracting files,
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except for that the actual extracted data is never written to
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your file system. Testing files is useful when you wish to verify
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the integrity of a Zip file without actually extracting the files
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within it.</p>
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<p>Once you have opened a Zip file into Pocket UnZip, you should
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see a list of the Zip file's contents. Select one or more files
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from the file list and then choose <strong>Test Selected Files</strong>
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(<strong>Ctrl+T</strong>) or <strong>Test All Files</strong> (<strong>Ctrl+A</strong>,
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<strong>Ctrl+T</strong>) from the <strong>Action</strong> menu. You may
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also use the noted shortcut keys or the associated toolbar
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buttons.</p>
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<p>A progress dialog will appear and the testing will begin. At
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any time during the testing, you may tap the <strong>Abort</strong>
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button to abort the testing operation.</p>
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<p>During the testing, you may get interrupted for one of two
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reasons. First, if an error occurs, you will be notified with a
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message box. Second, if a file being tested is encrypted, then
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you will be prompted for that file's password (see the <strong>Encrypted
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Files</strong> section).</p>
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<p>Once the testing is complete, the <strong>Abort</strong>
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button will change to a <strong>Close</strong> button and any
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errors or warnings will be displayed. Tap the <strong>Close</strong>
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button to return to Pocket UnZip's main screen.</p>
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<hr>
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<h3>Viewing Files</h3>
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<p>Pocket UnZip provides the ability to view, or even execute,
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files directly from a Zip file. This feature is a major
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convenience over having to extract and then manually open each
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file you wish to view. Internally, this is what Pocket UnZip is
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doing for you, but it takes care of all the work of extracting
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the file to a temporary directory, launching the associated
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viewer for that file type, and cleaning up when done.</p>
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<p>To view a file, simply select a single file from Pocket
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UnZip's main file list and press <strong>Enter</strong>. You may also
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choose <strong>View Selected File</strong> from the <strong>Action</strong>
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menu, press the associated toolbar button, or just double-tap on
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the file you wish to view.</p>
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<p>The file will be extracted to a directory called<strong>
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Temporary Pocket UnZip Files</strong> in the root of your file
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system. If the file you wish to view is encrypted, you will be
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prompted for a password. If the file has an associated viewer
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application installed (such as Pocket Word for .PWD files), then
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that viewer will automatically be launched with the newly
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extracted file as its command line. If there is no associated
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viewer application, then you will be prompted for the application
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you wish to use to view the file.</p>
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<p>Pocket UnZip also provides minimal support for allowing you to
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use the view file action to run executable programs directly from
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the Zip file. If the file you choose to view is an executable
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(file extension is EXE), then the file will be executed after it
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is extracted. Pocket UnZip will only extract the file you select
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and none of its dependent files (like DLLs). If the executable
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you extract depends on other files in the Zip file, it will most
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likely fail to execute.</p>
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<p>When Pocket UnZip exits, it will delete the <strong>Temporary
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Pocket UnZip Files</strong> directory and all the files in it. If
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you are running more than one instance of Pocket UnZip, then only
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the last instance of Pocket UnZip that you exit will perform this
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delete. Most applications, such as Pocket Word, lock files when
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viewing them. Any files being viewed by such an application when
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you exit Pocket UnZip will not be deleted.</p>
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<hr>
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<h3>Encrypted Files</h3>
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<p>If an encrypted file is encountered during an extract, test,
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or view operation, you will be prompted for a password. You can
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choose to skip the file, skip all encrypted files, or enter a
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password. You will be given three attempts at entering the
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correct password before the file will be skipped automatically.
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Once you have entered the correct password for a given file, that
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password will be remembered and automatically used for all other
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encrypted files that are encountered during that single extract,
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test, or view operation. If another encrypted file is found that
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uses a different password than the remembered password, then you
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will be prompted again for a new password.</p>
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<p>This technique provides support for multi-password Zip files,
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while still providing users with single password Zip files the
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convenience of only having to enter their password once during
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the operation for all encrypted files. For security reasons,
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passwords are not remembered after the operation completes.</p>
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<hr>
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<h3>About Pocket UnZip</h3>
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<p>Thank you for using Version 2.0 of Pocket UnZip for Windows
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CE.</p>
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<p>Pocket UnZip was developed by Steve P. Miller. Although I'd
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like to take full credit, I could not have done it without the
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public decompression source code provided by the Info-ZIP group.
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Pocket UnZip uses version 6.0 of Info-ZIP's core decompression
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code. Many thanks go to Greg Roelofs and all the fine folks at
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Info-ZIP.</p>
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<p>Please send all comments, suggestions, and bug reports
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to <strong>stevemil@pobox.com</strong>.</p>
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<p>Pocket UnZip is freeware - no shareware fees, no purchase
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fees. You can still send me an email or a box of cookies if you
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like it. If you would like to distribute Pocket UnZip, please
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look at the terms and conditions listed in the accompaning
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Info-ZIP LICENSE file.</p>
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<p>For the latest news, binaries, source code, and more
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information about the Info-ZIP group, visit
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<strong>ftp://ftp.info-zip.org/pub/infozip/</strong>.</p>
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<p>For more information about me, or to check out some of my
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other applications (mostly Windows 95 / NT / CE), stop by my
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personal web page at <strong>http://pobox.com/~stevemil/</strong>.</p>
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<p>Copyright <20> 1997-2009 Info-Zip. All Rights Reserved.</p>
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</body>
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</html>
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