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Binary Diffrential Update?

נעול Binary Diffrential Update?

  • יום רביעי 01 אוגוסט 2012 19:10
     
     
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    Hi,

    Let's say I have a program and many other files along with the program. The files are needed for the program to function properly. When I have an update what I normally do is have my program download and replace the files needed to update. However, I've run across some problems with downloading and replacing. When my file is over 500MB long it would take a very long time to download 3 files or more if my internet ( or the user's internet ) is slow.

    I found a program called "Clickteam - Patch Maker" Click Here To See It

    What it does it it compare the old files to the new one and stores the differences in a Patch file ( only from 1MB - 5MB depending on file size ) and the Oatch file Patch over the old files.

    Is this possible in Visual Basic?

       

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    • יום חמישי 02 אוגוסט 2012 12:40
       
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      Hi,

      VB is able to open a file for updates so I don't see whay it wouldn't be possible. The user will need admin rights and it could be caught though as a suspect activity by an antivirus software.

      If using ClickOnce my personal preference would be to just split the file in logical DLLs so that only the updated DLLs are downloaded (and you have no need to build a patch db).

      Please always mark whatever response solved your issue so that the thread is properly marked as "Answered".

         
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