Microsoft late last week said it won’t patch Windows XP for a pair of bugs it quashed Sept. 8 in Vista, Windows Server 2003 and Windows Server 2008.

The news adds Windows XP Service Pack 2 (SP2) and SP3 to the no-patch list that previously included only Windows 2000 Server SP4.

“We’re talking about code that is 12 to 15 years old in its origin, so backporting that level of code is essentially not feasible,” said security program manager Adrian Stone during Microsoft’s monthly post-patch Webcast, referring to Windows 2000 and XP.

Leading U.S. cable operator Comcast Corp said on Wednesday it plans to offer subscribers the option to watch their favorite TV shows on mobile devices through its new wireless Internet service.

The company is also exploring adding a voice option to the wireless package that would put it in more direct competition with mobile phone providers like AT&T Inc and Verizon Communications Inc.

Comcast recently started rolling out its wireless Internet services in some U.S. cities as part of a joint venture with Clearwire Corp, which uses WiMax technology.