Microsoft plans to start pushing out the third service pack for Office 2003 via its automatic update service beginning Feb. 27.

That means that the service pack will be automatically installed on the machines of those customers who have signed up for Microsoft Update and who have not yet installed Office 2003 Service Pack 3.

Should customers not want the service pack to be automatically installed, they will have to opt out of the update service, as Microsoft is not providing a way to block Office 2003 SP3 exclusively