AdvanceCOMP v2.0 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

Download: AdvanceCOMP v2.0 x86
Download: AdvanceCOMP v2.0 x64
Source: Here