interface is a reserved word, so we've renamed one variable.  There's
also no sethostent on win32, and Oddsock seems to think we need
DeleteCriticalSection instead of DestroyCriticalSection.  I was unable
to figure out from msdn.microsoft.com why this was, but I'll trust
Oddsock's judgement.

svn path=/trunk/net/; revision=2194