Hi Paul

I got affected by that and other win revzip issues too. I ended up parsing them 
through a shell script and using windows built in unzipper. Of course the 
downfall with that is a lack of feedback on progress which, for large files 
like this, requires a great deal of time to process and feedback is almost a 
necessity. I made the shell visible just so that the customer was aware of its 
progress. It was ugly in terms of UIX but it got us out of a short term hole. I 
hope you can get a more long term solution. 

I’m sure you’re capable of building the shell script but let us know if not. 

All the best
Sean



> On 11 Oct 2022, at 20:37, Paul Dupuis via use-livecode 
> <use-livecode@lists.runrev.com> wrote:
> 
> We just got bit by a 4+ year old bug (See 
> https://quality.livecode.com/show_bug.cgi?id=20859) where the revZIP library 
> on macOS can create and read ZIP archives over 2GB, BUT the Windows library 
> can not.
> 
> We distribute our desktop research application as "cross-platform" for macOS 
> and Windows and just had a researcher on macOS build a "package" (our term 
> for a custom ZIP archive our LiveCode app can make of the researcher's data 
> files) over 2GB and sent to their Window colleague who can NOT open it.
> 
> Yes, we walked the Windows researcher through unzipping the archive with 
> WinZIP and accessing all the data files manually, but so much for the 
> "elegance" of our app being cross-platform due to using LiveCode.
> 
> Now, do we add code to check the size and prohibit macOS users from creating 
> "packages" over 2GB so if they are sent to a Windows researcher, they can be 
> opened OR do we just warn the Windows researcher if the archive is over 2GB 
> that they will not be able to open it? Neither is a good option.
> 
> This just makes us look bad.
> 
> Paul Dupuis
> Researchware
> 
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