Email extractors, what's good... what bites?

[anthonyrude]

I'm looking for a good email extractor that I can set to only extracting
emails through one level of links on a specific website.

I found one at downloaddotcom that was rated highly but everytime
I tried it it would lock up my computer because I didn't have enough
"virtual memory"... what the heck is that?

Can I adjust it or do I need to buy more memory?

Thanks for helpin' out a newbie.

Tony