AdvanceCOMP v1.20 is released. AdvanceCOMP contains recompression utilities for your .zip archives, .png images, .mng video clips and .gz files.

AdvanceCOMP package contains:
advzip - Recompression and test utility for zip files
advpng - Recompression utility for png files
advmng - Recompression utility for mng files
advdef - Recompression utility for deflate streams in .png, .mng and .gz files

AdvanceCOMP v1.20 Changelog:
– Fixed .gz recompression of data bigger than 400 MB.
– Fixed .gz recompression with -0 and -1 options.
– Updated to the latest zopfli [Aaron Kaluszka].
– Preserve the EFS flag in .zip files [Jason Penney].

Download: AdvanceCOMP v1.20
Source: Here