How important is Posix?
tptacek: Everyone I know that does dev work on Win32 just installs cygwin and runs an xterm. It works fine. Personally, despite being a Unix user since 386bsd, I think the Registry is a major win over the sprawl of incompatible picky config files in /etc, /var, /usr/share, and /usr/local. I also think SVCHOST.EXE is a win over inetd.conf and inittab.