Microsoft has re-released a buggy update that didn't properly protect some of its Windows 2000 users from a security flaw.

The MS10-025 security update, released on April 13, was for Windows 2000 users who were also running Windows Media Services. This software -- used to stream multimedia over the Internet -- had a buggy component called the Windows Media Unicast Service that could be exploited to run unauthorized software on the PC.

Unfortunately, Microsoft's initial patch didn't quite fix the problem, according to Microsoft Security Program Manager Jerry Bryant.

More: http://www.computerworld.com/s/article/9176050/