Sneaky Virtual Greeting Spam

I just got a spam message that is sneaky enough that I feel I should warn others about its sneakiness. It poses as some sort of virtual post card or message:

Hello ,

A Greeting Card is waiting for you at our virtual post office! You can pick up your postcard at the following web address:

[the url is here]
visit E-Greetings at [again, the url]

and enter your pickup code, which is: a0190313376667

(Your postcard will be available for 60 days.)

Thing is, when you try to click on the URL, it doesn’t go where it is pointing. It goes to some windows application which does whoknowswhat to your machine. Keep in mind that most virtual post card places will let you know who the card is from. If it doesn’t don’t risk it, it could kill your computer.