The ISC made a benchmark of BIND on serval platforms. OpenBSD outperforms Windows but is the slowest (compared to Linux, fBSD, nBSD and Solaris!) of the other tested OSs. :-/
Well take a look for yourself (hopefully some devs read this! Speacily those who know how free() works!). http://new.isc.org/proj/dnsperf/OStest.html That's not just something related to the "security first"-credo. Kind regards, Sebastian