Archiver, 7z Alternative and FreeArc Replacement

[Registered55]

Hi everyone,

I've been experimenting with archiver.exe and testing out various multi-codec chains (combining precomp sub-codecs, srep, and zstd), but I'm finding it a bit tricky to dial in the optimal syntax without official example scripts.

Since documentation on command-line configurations is sparse, would any of the experts or the developer be willing to share a few working example command lines?

Specifically, I'm looking for two or three profiles:

Normal / Balanced Profile: A clean, reasonably fast command for everyday folder archiving.

High-Compression / Max Profile: A heavy archival command (using precomp/rep/zstd or alternative internal codecs) pushed to its limits for maximum size reduction.

Extraction Command: The matching clean extraction syntax for those specific profiles.

Having a small cheat sheet of tested examples on the forum would be immensely helpful.

for context, i'm currently testing on PS3 ISO's Decrypted.

[panker1992]

Generally i am trying to understand what is it that you are trying to do ??

if you want to max compression why would you use ZSTD?

precompression is there to help you pack better, so if you precompress kraken and leviathan streams you need equivalent or better to go for more

therefore ZSTD for max compression is a no go,

you can use rep or addex in my archiver both are good deduplications engines self made.

rep is a sliding window, symmetric deduplication engine which uses the same ram to compress/decompress and its very very fast and efficient.

Addex will be better to gather reps that are scattered i used logic that came from Srep to make this happen.

of you want to compress max

xz:l9:d256mb:t10 will give you the best lz77 family can get you

if you want to go oodle, then you can do

oodle:l9:a13:v1:t10:d256mb,
this will make leviathan scoop the input because v1 uses previous block as a dictionary for the next. using :v0 will half the ram

zstd:l22:w31:f1:s9 will give you the best ratio zstd can offer, remember zstd is using Entropy + tANS so it will take 2 hours to compress and will give you worse ratio than xz

if you are interested in details give me a PM and i will help you more

[Joe Forster/STA]

Originally Posted by panker1992

if you are interested in details give me a PM and i will help you more

I think everyone is interested in the details; that's what this forum is for.

[panker1992]

Details vary per request,

What details do you require??

Do you want to maximize ratio? or get the best possible speed??

Do you have compress once decompress many model ?? like repackers where compressing once takes multiple hours but the unpack will happen to millions of PCs?

Do you want RAM oriented performance ??

how am i supposed to provide detailed guidance in any case.


There is something else as well.

Archiver has Build-in Compressors you are highly familiar with for example lzma2,xz,zstd and more. i didnt change their params to something else so if you know how to use zstd in FA then you can use it on my tool as well in the same way.


Details for my own algorithms is a welcoming question


I have forked xtool 7.9 and i have added native code for packmp3,packjpg,wavpack, and my own algo for OGG, called oggpre.

the same goes for addex, and rep.

So the request for details must at least include a topic.