[Lazarus] Zipfiles using Paszlib...

[Lee Jenkins]

Sergei Gorelkin wrote:
> Lee Jenkins wrote:
>> I'm confused.  Does TZipper produce pkZIP compatible files or is it zlib based 
>> and only called TZipper?
>>
> Yes, it produces pkZIP compatible files and yes, it uses zlib for 
> compression.
> .zip file format deals only with overall archive file structure 
> (headers, directories, etc). Each individual file within .zip archive 
> may be compressed using its own method, or even not compressed at all.
> The most popular compression format used in .zip files is 'deflate', 
> which is handled perfectly well with zlib. The difference with .gz 
> format is only that compressed stream is written without .gz header.
> 

Thanks for that, Sergei.  I wasn't aware of that and thought that they used 
incompatible compression algorithms.

Thanks again,

--
Warm Regards,

Lee