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What is the .CAB File Extension?


.CAB File Extension Description:

Files with the .cab file extension refer to cabinet files, which are the native compressed format for archive by Microsoft Windows. Microsoft uses cabinet files in various installation engines, such as Setup API, AdvPack, Device installer, and Windows Installer.

Files in the .cab format are single files designed to hold several compressed ones. When a program is installed in Microsoft, files compressed in a .cab file are decompressed and then copied onto a designated directory. Microsoft uses CAB files to distribute its native products, like the Office Suite (PowerPoint, Word, MS Money, etc).

Files with the .cab extension are basically used for the organization of installation files in the operating system. Since the nature of CAB files are in compressed form, this saves space and time during software installations. This is most especially utilized in download time for content found in the Internet or on servers designed as corporate intranet.

Cabinet files, which have the .cab file extension, have two components: folders and files. Folders in a .cab format are a continuous block of data that are compressed. Files in a cabinet file are individual items that can span folders. Files found in a CAB file archive can become a single block by being compressed across file boundaries.

CAB files support three methods of lossless compression: MSZip, LZX, and storing. MSZip uses the DEFLATE algorithm, which is a combination of the Huffman coding and LZ77 algorithm, to compress files. LZX is also based on the LZ77 algorithm, uses more memory, but produces better ratios in compression compared to MSZip. Storing, last of the methods, simply means that the file is stored within a cabinet file, and is uncompressed.

Author: Microsoft Corporation
Author URL: http://www.microsoft.com
Related Applications: Microsoft Applications
Common Path: n/a

Recommendation:

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Do you have errors with .CAB files?

The Typical Reason for .CAB files Errors:

When experiencing errors with .CAB files you are likely experiencing a severe Windows error - the error can be the result of damage to your program registry and you should act to repair it at once to avert additional damage to your file system. Dangers include hardware damage, blue screen errors and fatal crashes.

Symptoms of .CAB files Errors:

.CAB files error symptoms include software crashes, system start up or shut down troubles, jerky computer performance, sluggish behaviour, input freezing, internal speaker beeps, problems loading documents and issues while installing applications.

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What is the .CAB File Extension?    |    How to Fix .CAB File Extension Errors    |    Repair .CAB File Errors