Lha for Unix, version 1.14g (7 May 2000), by Tsugio Okamoto.
NuLib v3.25 (January 1997), an archiver for NuFX (Apple II ShrinkIt) files, by Andy McFadden and Devin Reade. C source code for Unix and DOS (though the current maintainer of NuLib has not tested the source under DOS). [source code for NuLib v3.24 is available as download-tools/pc/nulibsrc.zip]
Extracts or views BinSCII files and several other Apple II formats, by Marcel J.E. Mol. C source code version 3.10 for UNIX and DOS. [same contents as download-tools/pc/sciibin.zip]