Smallest LZMA Decompressor

**comp1** · 1st October 2018, 20:38

Hello everyone,

I've been working on making the smallest possible LZMA decompressor.

I used Eugene's LZMA source code (http://nishi.dreamhosters.com/u/lzma.rar) to create this.

I'm sure someone has made a smaller LZMA decompressor executable. But, I thought I'd share mine for anyone who is interested. Note that decompression speed DID NOT decrease with this exe. If someone is interested, I can always make it smaller stil but also lose performance.

USAGE:

Code:

decomp.exe d file.lzma file.unp

Have fun and please share a smaller exe if you have one!

**Bulat Ziganshin** · 1st October 2018, 20:59

Can we please have it in source form, preferably on github?

**comp1** · 1st October 2018, 21:06

Originally Posted by Bulat Ziganshin

Can we please have it in source form, preferably on github?

Bulat, small size is achieved during compilation/linking, not in source.

The only change I made to the source in lzma.rar is to LzmaUtil.c. I removed the "e" parameter so that Visual Studio would allow me to excluse LzmaEnc.c without error.

**comp1** · 3rd October 2018, 10:52

Updated first post with new, smaller exe.

**TeLeMan** · 9th October 2018, 06:22

Based LzmaDecodeSize.c and LzmaUtil. No more optimization for size after compiling.

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