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<h1 style="text-align: center;"><big><big><big><a
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Cabinet files<br>
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<h2><big><big><big><a name="cab_file_type"></a><a
href="cab-file-format.html#.cab_extension">What are CAB files,
Microsoft Cabinet
archive format</a></big></big><br>
</big></h2>
</div>
<br>
<div style="text-align: left;"> </div>
<div style="text-align: left;"> </div>
<a name="what_is_a_cab_file"></a><span
style="font-weight: bold;">CAB </span>extension designates Microsoft
Cabinet
format,
a compressed archive / package standard developed by Microsoft,
employing various
compression algorithms standards including public domain Phil Katz's
Deflate (default compressor algorithm for .<a
href="zip-file-format.html">zip format</a>), to create
various types
of compressed
packages used for multiple purposes, such as distribution of software
components and updates.<br>
<table style="width: 100%; text-align: left;" border="0"
cellpadding="24" cellspacing="0">
<tbody>
<tr>
<td
style="text-align: right; vertical-align: middle; width: 64px;">
<h2><span style="font-weight: bold;"><img
title="What is CAB file type, Microsoft Cabinet archives extension"
alt="CAB file format features, specifications"
src="file-format/information.png" style="width: 48px; height: 48px;"><br>
</span></h2>
</td>
<td
style="font-style: italic; vertical-align: middle;">
<p><span style="font-style: italic;">.CAB extension
is associated to PeaZip </span><span style="font-style: italic;">by
default, from </span><span style="font-style: italic;">read-supported
formats
group in File
associations screen of Windows installers. This option can be
selected/deselected running
custom installation or from application's main menu Options
> System integration</span></p>
</td>
</tr>
</tbody>
</table>
CAB packages role featured for Microsoft Windows world is similar to
some
extent to
TAR in Unix/Linux world, or to functions later performed by Microsoft's
WIM Windows
Imaging Format (supported by PeaZip for extraction and
archiving) for Vista and more recent systems - still, CAB format works
with more recent Microsoft ssystems.<br>
<br>
<h2 style="font-weight: bold;">Maximum size limit
specifications for CAB files<br>
</h2>
<a name="max_size_of_a_cab_file"></a>CAB format is limited
to a max size of 2 GB, 2^31 bytes in size (signed 32 bit integer for
filesize), theoretically a spanned CAB set of files allows up to 2^16
parts of 2 GB maximum size each. To overcome limitations of CAB package
format specifications, Microsoft designed the more modern WIM Windows
Imaging format.<br>
<br>
<a name="cab_file_format_specifications"></a>Read more on
.cab extension: <a target="_blank"
href="https://msdn.microsoft.com/en-us/library/bb417343.aspx">Microsoft
Cabinet
format<img alt="Microsoft CAB standard specifications"
title="MS CABINET" src="free-rar/extractor.png"
style="border: 0px solid ; width: 12px; height: 10px;"></a> page on
MSDN, <a target="_blank"
href="http://en.wikipedia.org/wiki/Cabinet_%28file_format%29">CAB<img
title="Microsoft CAB archive (Wikipedia)"
alt="MS Cabinet file .cab format" src="free-rar/extractor.png"
style="border: 0px solid ; width: 12px; height: 10px;"></a><span
style="font-weight: bold;"> </span>Wikipedia
page, and <a target="_blank"
href="https://technet.microsoft.com/en-us/library/cc749478%28v=ws.10%29.aspx">WIM<img
alt="What is Windows Imaging Format archive" title="WIM specifications"
src="free-rar/extractor.png"
style="border: 0px solid ; width: 12px; height: 10px;"></a> format
specifications on
Microsoft Technet.<br>
<br>
PeaZip features <a href="cab-files-utility.html">read-only support for
CAB files</a>, allowing opening for browsing/inspection, <a
href="how-to-extract-selected-files-from-archive.html">selective
content extraction</a> from CABINET file container, and to <a
href="convert-files.html">convert cab
files</a> to other archive formats (ZIP, 7Z, etc) more handy to work
with in a non-Windows or mixed Operating Systems environment.<br>
<h3><img title="CAB format features and specifications."
alt="what are cab files" src="extract-archive.png"
style="width: 112px; height: 45px;"></h3>
<br>
<table
style="background-color: rgb(72, 136, 248); width: 100%; text-align: left;"
border="0" cellpadding="0" cellspacing="1">
<tbody>
<tr style="color: rgb(245, 245, 245);">
<td colspan="1" rowspan="1"
style="vertical-align: top; background-color: rgb(72, 136, 248);">
<table style="width: 100%; text-align: left;"
border="0" cellpadding="0" cellspacing="0">
<tbody>
<tr>
<td style="vertical-align: top; width: 24px;">
<br>
</td>
<td style="vertical-align: top; width: 430px;"><br>
</td>
<td style="vertical-align: top; width: 24px;"><br>
</td>
<td style="vertical-align: top; width: 430px;"><br>
</td>
<td style="vertical-align: top; width: 24px;">
<br>
</td>
</tr>
<tr>
<td style="vertical-align: top; width: 24px;"><br>
</td>
<td
style="vertical-align: top; color: rgb(245, 245, 245); width: 430px;">
<table style="width: 100%; text-align: left;"
border="0" cellpadding="0" cellspacing="0">
<tbody>
<tr>
<td
style="width: 50%; color: rgb(245, 245, 245); vertical-align: middle;">
<h3><big><big><big><big><big><a
name="ms_cab_specifications"></a>.CAB</big></big></big></big></big></h3>
</td>
<td
style="width: 50%; color: rgb(245, 245, 245); vertical-align: middle;">Author
Microsoft<br>
2 GB max file size (per part)<br>
</td>
</tr>
</tbody>
</table>
</td>
<td style="vertical-align: top; width: 24px;"><br>
</td>
<td
style="vertical-align: top; color: rgb(245, 245, 245); width: 430px;">
<h4><big>SPEED <img alt="Microsoft CAB format"
title="What are CABINET files" src="zip-files/star4.png"
style="width: 80px; height: 16px;"></big></h4>
CAB format features usually high speed, due commonly employing Deflate,
suited to its primary
role of package distribution.<br>
</td>
<td style="vertical-align: top; width: 24px;"><br>
</td>
</tr>
<tr>
<td style="vertical-align: top; width: 24px;"><br>
</td>
<td style="vertical-align: top; width: 430px;"><br>
</td>
<td style="vertical-align: top; width: 24px;"><br>
</td>
<td style="vertical-align: top; width: 430px;"><br>
</td>
<td style="vertical-align: top; width: 24px;"><br>
</td>
</tr>
<tr>
<td style="vertical-align: top; width: 24px;"><br>
</td>
<td
style="vertical-align: top; color: rgb(245, 245, 245); width: 430px;">
<h4><big>COMPRESSION
RATIO <img alt="cab format specs" title="What are cab packages"
src="zip-files/star2.png" style="width: 80px; height: 16px;"></big></h4>
Cab file format features usually moderate compression ratio, in most
common cases CAB packages comes with fast but
moderate Deflate compression.</td>
<td style="vertical-align: top; width: 24px;"><br>
</td>
<td
style="vertical-align: top; color: rgb(245, 245, 245); width: 430px;"><big>ADVANCED
OPTIONS N/A</big><br>
CAB file type is usually employed as distribution for software
packages, cannot
be evaluated in terms of pure archiving options.<br>
</td>
<td style="vertical-align: top; width: 24px;"><br>
</td>
</tr>
<tr>
<td style="vertical-align: top; width: 24px;"><br>
</td>
<td style="vertical-align: top; width: 430px;"><br>
</td>
<td style="vertical-align: top; width: 24px;"><br>
</td>
<td style="vertical-align: top; width: 430px;"><br>
</td>
<td style="vertical-align: top; width: 24px;"><br>
</td>
</tr>
</tbody>
</table>
</td>
</tr>
</tbody>
</table>
<br>
<p><span style="font-weight: bold;">Synopsis: What is CAB
file format, Microsoft Cabinet archives / packages extension. What are
CAB files features and specifications. What are Cabinet containers used
for.</span><span style="font-weight: bold;"></span></p>
<p><span style="font-weight: bold;">PeaZip > FAQ
> What is CAB format (Microsoft Cabinet files)</span></p>
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alt="cab file type" src="titles.png" style="width: 129px; height: 2px;"><br>
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