No. Windows has almost nothing in common with Unix under the hood and this isn't anything that can be changed with some incremental subsystem additions. Only

No. Windows has almost nothing in common with Unix under the hood and this isn't anything that can be changed with some incremental subsystem additions. Only a complete rewrite from scratch could accomplish that, and even then, it's quite likely they'll base it on the Singularity plans from Microsoft Research rather than on Unix (there already is such a tentative project codenamed Midori).