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Compression (Developers)

posted by Rugxulo Homepage, Usono, 14.04.2008, 20:00

> > >... using 7-Zip to zip tighter than
> > > they do with an obviously old archiver.
> >
> > What will you use to decompress? The archive decompressor is integrated
> > into the installer.
>
> I meant using 7-Zip to make *.zip archives. It packs tighter than Info-ZIP
> and others (except on very small, or already compressed original files like
> JPEGs, which are not an issue here). Unpacking works with any current
> unzipper.
Yes, that's all correct. Or you could even use AdvanceComp to recompress any .ZIP in memory using 7-Zip's improved Deflate. It does remove .ZIP comments and extra field info, but almost nobody needs those anyways. Yes, any unzipper can unpack 'em. The only real downside is that 7-Zip / advzip run slower than normal ZIP.

Anyways, since FPC needs 386+ anyways, it might be best to just transition to 7-Zip entirely (for the distribution archives) since it compresses better (and even DOS supports it now). It has plenty of options, so it's very very flexible and still being tweaked. ;-)

> There are other solutions too, easy to apply and needing really only a few
> minutes preparation. How hard is it to download an archiver/compressor and
> look up its commands for insertion into a script?
>
> This might seem trivial, compared to all the other work of building a
> package, but reduced download time might go a long way in encouraging
> users to get the product.
<insert obvious remark about fast speeds these days>

I agree re: reduced download time, but I think some people won't. :-/
(Also, I still fully support UPX as useful in most cases.)

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