I am working on adapting some basic tools of mine to Pharo, and ran into a trick that use often: specifically, I use ZLib and Dolphin's ability to package globals to store compressed text for scripts, "empty" document files, etc. Then a small wrapper method uses ZLib to uncompress the content of the global w/o having to store all of data in the method source. There are other solutions, but I do this frequently and need to pick a way to handle it. At the most basic level, I found the compression stream and archives categories, but am unclear on where to look. If I want to have a byte array of data and "zip" or "unzip" it memory, is there a good entry point? Would I use a stream or an archive? Please do not feel pressed to do my browsing for me, but if somebody knows the answer, a class or method name would be appreciated. BTW, as further evidence of the accumulated effort, to check the jargon above, I just fired up an early 3.9 image that was handy, and the differences are striking! Maybe I do want to lean on Damien for an updated web image :) Bill Wilhelm K. Schwab, Ph.D. University of Florida Department of Anesthesiology PO Box 100254 Gainesville, FL 32610-0254 Email: bschwab@anest.ufl.edu Tel: (352) 273-6785 FAX: (352) 392-7029