The Internode Mirror contains a wide selection of software for download by Internode customers.
File Download Mirror Directory Listing
Index of /pub/ctan/obsolete/graphics/metapost/base/source/libs/libpng/libpng-1.5.16/contrib/pngminim/encoder/
Index of /pub/ctan/obsolete/graphics/metapost/base/source/libs/libpng/libpng-1.5.16/contrib/pngminim/encoder/