>Peter asked:
>
>But anyway, could you tell what "data" is in there, and what (how much) is there to gain ? could be useful ...
>
>
>Answer:
>
>The data will be multiple pages of financial account statements for thousands of customers. Should be compressible to approx 1/10 of original size. Thats a substantial gain.
>

Assumed that it's not images in there, it is about some printed output, right ? so I believe it. Thanks.

Don't want to interfere, but couldn't this data be normalized ?
You'd gain much more (functionality).
(but never mind)

I can't help you with some DLL, but maybe you could investigate compressing it yourself. Some very stupid compression of the spaces (CHR(32)) in there could do a lot, and is easy to do yourself. Some recursive STRTRAN from space into {n}'s ({ is any unique delimiter, n is number of spaces compressed) may do a lot. Very easy (fast) to decompress as well.

Anyways, HTH,