Archive: 7-zip info...
7-zip info...
Hi all!
I've heard that work are going on about adding 7zip support to NSIS...
Well, I'm waiting this support to pass from my current
installation system to NSIS... How long do you think we have
to wait for seeing it included in NSIS?
Bye!
It's takes a lot of time to convert the whole 7zip code to C. Kichik is working on it, but it won't be available very soon.
wow! that's lots of work!
Are we sure that is worth the time?
And, currently the overload is 35kB, by how much will be increased when supporting 7zip?
I don't know if these numbers mean anything, but in 7-zip the dll for zip is 43kB, and 211kB for 7zip.
The overhead should be about the same. I don't think it'll take a lot more. The DLLs use COM interfaces and are not optimized for size, their size says nothing.
That's great :)
And there will be a seperate exehead for 7zip, just like zlib and bzip2. So it won't increase the size if you don't use it.
I'm eagerly awaiting 7z compression as I use NSIS with a lot of databases and the amount of size I'll save on installers will certainly be substantial...Keep up the good work guys...I love NSIS :)
what's the diference between 7zip bzip2?
I know the compression level... but...
is there more than that?
What more do you need out of a compression method than size? ;)
This page talks about the format:
http://www.7-zip.org/7z.html
ooooooh! :weird:
Using 7-Zip I compressed with and without SFX, and the SFX adds ~70kB to the file. So, I understand that, at the end, NSIS can help 7-Zip as well :)
upx is great, doesn't?
and icq ;)
UPX is only useful to compress the exehead a bit, it uses a standard compression method.
The LZMA compression from 7zip can give very good results (> 25% smaller than BZIP2), depending on the content type. Compressing data using the LZMA method takes some time, but decompression is fast.