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binunpk-1.2.0.zip (info) a zipped hfs disk image and checksum file. The disk image can be mounted with Mini vMac. Includes source code.
binUnpk is an application to unpack files in MacBinary format. It is mostly useful for unpacking the Stuffit Expander 4.0.1 archive. It can also unpack other MacBinary files, but there isn't much need for it once you have Stuffit Expander. (Update - now that I'm hosting StuffIt Expander in disk image format, there is even less need for binUnpk.)
Since binUnpk comes as a zipped disk image, you don't need any other unpacking software running on the emulated Macintosh to unpack it. You just need to unpack the zip file on the real computer.
See the Compiling page for instructions on compiling binUnpk from the source code.
You can redistribute binUnpk and/or modify it under the terms of version 2 of the GNU General Public License as published by the Free Software Foundation. See the included file COPYING.
binUnpk is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the license for more details.
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If you find binUnpk useful, please consider helping the Gryphel Project, of which it is a part.