How common is lack of DNS server diversity?

Sat Jan 27 18:38:32 UTC 2001

> It appeared from the reports/complaints we
> received that a number of client systems/resolvers had decided to only
> request data from the nonfunctional DNS server and despite 
> failing on that
> wouldn't ask our other listed DNS servers. They therefore could not
> resolve addresses for otherwise functional network assets. I seem to
> remember this was somehow related to systems running Microsoft OS's.
>   Am I confused or could it be that Microsoft knows something 
> about this?

MS DNS, WinNT4 and below, have broken search algorithm implementations.
DDNS, Win2K, is currently untested.