> I am running windows server 2012 and am currently
> trying to back up a very large website for my
> employer and have run into an issue with using
> multiple instances (each instance is responsible for
> one section of the site). For several days the CPU
> usage of each instance is within reason, but then a
> single instance's CPU usage spikes to over 70% of
> the CPU of my computer. The CPU spike doesn't seem
> to be correlated to file parsing and doesn't seem to
> be linked to large file fetching.

How many links are being processed ? httrack is known not to be good beyond
100,000 links (millions links will probably cause performance issues in
various places), and this might be the cause.