While not directly Windows Media Center related I thought is worth mentioning the security update that Microsoft put out yesterday. You can tell the significance of the update as Microsoft have not waited for patch Tuesday as they normally would. The update is for a vulnerability in the Server service and is classed as Critical for Windows 2000, Windows XP and Windows Server 2003 and as Important for Vista and Windows Server 2008.
The update will be coming down via Windows Update and don’t forget to install the update on your Windows Home Server system (as it’s based on Windows Server 2003)
More details available on Microsoft Technet
This security update resolves a privately reported vulnerability in the Server service. The vulnerability could allow remote code execution if an affected system received a specially crafted RPC request. On Microsoft Windows 2000, Windows XP, and Windows Server 2003 systems, an attacker could exploit this vulnerability without authentication to run arbitrary code. It is possible that this vulnerability could be used in the crafting of a wormable exploit. Firewall best practices and standard default firewall configurations can help protect network resources from attacks that originate outside the enterprise perimeter.
This security update is rated Critical for all supported editions of Microsoft Windows 2000, Windows XP, Windows Server 2003, and rated Important for all supported editions of Windows Vista and Windows Server 2008. For more information, see the subsection, Affected and Non-Affected Software, in this section.