I made public gist to embed on the article, Serge has always been great and giving me feedback!

Compressing and extracting:

https://gist.github.com/an01f01/de03a1b4157c8628c5e98f8dc7e821d6#file-tzipfile_example-pas

Dynamic files:

https://gist.github.com/an01f01/bd9ac1f59c0870e7274907140feca221#file-tzip_adding_files_dynamically-pas

Displaying compression progress:

https://gist.github.com/an01f01/48ca8c1283369dda3a7b70cfbd9114a4#file-tzip_compression_progress-pas

Displaying overall compression progress:

https://gist.github.com/an01f01/4c2407eae0597b04cee5d1cad3e8e9bf#file-tzip_overall_compression_progress-pas

Progress Bars:

https://gist.github.com/an01f01/66a3d1fa176e43506ec2c295440a95a3#file-tzip_progress_bars-pas