I thought this was a new one, but Snopes says no. I just got this from the "Lottery Winners International". It includes, among other things:
ATTN: SIR/MADAM

We are pleased to inform you of the result of the Lottery Winners
International programs held on the 8TH JANUARY 2007.

CONGRATULATIONS!!!
Due to mix up of some numbers and names, we ask that you keep your winning information confidential until your claims has been processed and your money Remitted to you. This is part of our security protocol to avoid double claiming and unwarranted abuse of this program by some participants. All participants were selected through a computer ballot system drawn from over 40,000 company and 20,000,000 individual email addresses and names from all over the world. This promotional program takes place every year. This lottery was promoted and sponsored by
Association of software producers. we hope with part of your
winning,you will take part in our next year 20 million Euros
international lottery.

Snopes has a couple from 2002, parts of which are just the same as mine. Here's some of what Snopes says about it:
Those who try to collect their "winnings" soon find themselves on the receiving end of e-mails informing them that they have to fork over facilitation fees before the big payouts will come to them.

Snopes says it is similar to the Nigerian scam, but this time they're saying they're from the Netherlands (sorry, Branny).