ISC wasn't the only vendor involved in first-round DNS patching that has
issued a mea culpa. Two weeks ago, Microsoft confirmed that the July 8 DNS
update, tagged as MS08-037, was crippling machines running Windows Small
Business Server, a suite based on, among other programs, Windows Server
"Some customers have reported seeing random problems with services after
installing MS08-037," reported several Microsoft engineers in a post to the
Small Business Server (SBS) blog on July 17.
One SBS component that might fail to start, said Microsoft, was the IPSEC
service, which would knock the server off the network.

Total story here:

Vista...Why risk it? Fdisk it!