Dont. No, really, I’m serious. Don’t bother installing OpenVPN on Windows Vista. It just doesn’t work. Apparently as soon as it gets to installing the network drivers, Vista goes down HARD (Blue screen). Which interestingly enough, is the first time I’ve seen vista crash (though it has frozen a few times).
If your wondering, I used 2.0.7. But I’ve heard others have had the same issue.