Thanks Evan...
XMILL its a new option to me, because we was trying to make xmlzip work in VFP memory to memory but without any results...
Now we are using one dll we found in opensourse, and works great, but i'll check xmill.

Thanks again
---snip----------
>Does anybody know any product for data compression with VFP?
>I need to return XML from one COM and sometimes the Stream is very large...

I've never used these

http://www.research.att.com/sw/tools/xmill/
http://www.xmls.com/products/xmlzip/xmlzipPricing.html
Universal Thread Consultant.
MCSD Charter Member
Visual Foxpro MVP
Co-author of "Visual FoxPro Certification Exams Study Guide"
President of the Vancouver FoxPro User Group