The gzipped tarball adv550c.tgz (331K) contains the ANSI C source files and header files, derived by my A-code-to-C translator from the Adv550 A-code master source. The basic build is trivial: just compile and link the lot using an ANSI C compiler, and you'll have a fully functional adv550 executable. However, this executable won't support command history or editing, nor will it be windows-aware.

Follow this link if you need instructions for building less "dumb" executables from the same C source.

That instructions page contains links to the additional bits, necessary for building a GLK-linked executable on Linux or Windows, but in case you know what you are doing and do not need further instructions, here is winglk.zip ([an error occurred while processing this directive]) you will need for building a window-aware version on MS Windows. However, if unsure what's all this about, I strongly suggest you read the above-linked document on building A-code games from C sources.