This is a cross development C compiler, assembler and linker environment for the production of 8086 executables (Optionally MSDOS COM) All you need is in the 'Dev86src-0.12.0.tar.gz' file, the others provide only parts of this or just the binaries. Dev86src-0.12.0.tar.gz The complete source Dev86src-0.12.0.patch.gz Patch from version 0.0.11 as86-0.12.0.tar.gz The assembler source only libc-8086-0.12.0.tar.gz The libc source only. Dev86bin-0.12.0.tar.gz Linux-386 ELF binaries (libc-5.4.7) Dev86dos-0.12.0.zip Msdos binaries for making COM files. Dev86clb-0.12.0.zip Libc binaries all the libc archive files pre-compiled. (For DOS or minix) -- Rob. (Robert de Bath )