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ID: 22294, Experiments with Delta Compression and Delphi v0.92B

by Lluis Olle Email: Anonymous

A classical Delta Compression "matching" algorithm, coded using Delphi. Also, developed my own "tricks" for a better .exe files kind Delta Compression.
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For Delphi, Version 5.0  to 7.0 314 downloads
Copyright: No significant restrictions

Size: 387,346 bytes
Updated on Wed, 15 Jun 2005 10:06:40 GMT
Originally uploaded on Wed, 08 Sep 2004 11:27:43 GMT
SHA1 Hash: 7DD12CB9025D5FADC3759F6BEA66FA6540374A62
MD5 Hash: A6E5089CE2DF4F0B165FFE91D47CB5DF

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I've been always worried on why I get so bad Delta Compression ratios with my .exe applications ... as I didn't find any Delta Compression Delphi/Pascal source available, I've developed my own implementation of a classical Delta Compression algorithm ( documentation of which is also included ), to experiment with this theme.

I've also implemented some "tricks" for a better .exe kind Delta Compression ... but don't expect too much, as .exe files are very bad suited to Delta Compression ( as I've realized during the development of this code ).

The code is very much UNTESTED, and UNDEBUGGED ... so expect to have some bug. Any way, can be a good starting point for anyone trying to develop some kind of Delta Compression in his application.

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