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comp.compression Frequently Asked Questions (part 1/3)
Section - [10] Fake compression programs (OWS, WIC)

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Some programs claimed to achieve incredible compression ratios are completely
fake: they do not compress at all but just stored the uncompressed data in
hidden files on the hard disk or keep it in unused clusters. Needless to say,
such programs are dangerous and should never be used because there is a
significant risk of losing all the data.

The OWS program just remembers which clusters contained the data on the hard
disk. The data can be recovered only if those clusters are not used again for
another file.

The WIC program searches for the first directory in drive C: and creates a
hidden file called WINFILE.DLL containing a copy of all the original files.
If you copy the compressed file to another computer (which doesn't have the
file WINFILE.DLL), WIC reports a CRC error.

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Top Document: comp.compression Frequently Asked Questions (part 1/3)
Previous Document: [9] Compression of random data (WEB, Gilbert and others)
Next Document: [11] What is the V.42bis standard?

Part1 - Part2 - Part3 - Single Page

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Last Update March 27 2014 @ 02:11 PM