Well, I'm really not interested in any old way to unzip files otherwise I could use necromans DLL and not bother with 3rd party programs that may or may not be installed on the users machine...
I should of been clearer about this in my initial post..
I'm really interested in the 'art' of pure mIRC script and doing this just for the heck of it... There are many ways to achieve the objective of unpacking a file, I'm not looking for the best or most efficient method. I'm interested in doing it this specific way, with pure mIRC code, even though it has no advantages.
I'm going to be reading documents and trying to get my head around all of this binary stuff, Its a bit beyond me and seems daunting, but I might learn something..
Thanks all for your feedback.