Sorry to spoil the fun a bit guys, but it's not really a Vista-virus. It's just a proof-of-concept virus for the Microsoft Command Shell (MSH). This shell will replace cmd and command.com in current Windows versions, but is not yet included in the Vista beta. Also, the beta of MSH is not yet public, and it's a beta, so Microsoft has got plenty of time to sort out these bugs.
It's not that I love Windows, but to claim that Vista has viruses already is a bit unfair
