On Sun, Mar 23, 2003 at 08:30:34AM +0900, Shashank Date wrote: > I downloaded ruby-zlib-0.5.1.tar.gz from RAA but could not > find any documentation on how to install it on Windows. > > I tried the usual unzip, tar and then: > > C:\install> ruby extconf.rb > checking for deflateReset() in -lz... no That error means "I tried to find libz.so or libz.a, and I couldn't". So ruby-libz is a wrapper around the C library, and you have to install the C library first. There is an unofficial Windows DLL version available from http://gnuwin32.sourceforge.net/packages/zlib.htm or if you are under cygwin you could compile your own from source from http://www.gzip.org/zlib Regards, Brian.