Linux on Windows (Wine in reverse)
wezfurlong.org
wezfurlong.org
"Cooperative Linux, abbreviated as coLinux, is software which allows Microsoft Windows and the Linux kernel to run simultaneously in parallel on the same machine."
http://en.wikipedia.org/wiki/Lxrun http://www.ugcs.caltech.edu/~steven/lxrun/lxrun-FAQ.html#Q0....
lxrun also trapped syscalls, and supported running Linux binaries on Solaris, SCO UnixWare, and SCO OpenServer.
I used it in the late 90s as a quick hack to run linux binaries that were a huge headache to build on weird systems like OpenServer.
Like use the Linux BlueZ stack. But that still sounds remote at this stage.
http://articles.manugarg.com/systemcallinlinux2_6.html
http://kerneltrap.org/node/531 (From 2002)
http://lwn.net/Articles/18412/ (Yep, late 2002)