OEM 3Pack Office 2000 Pro SR1With Activation Wizard.Microsoft Product Activation is an anti-piracy technology designed to verify that the product has been legitimately licensed. All customers who purchase retail packaged products or a new PC from an original equipment manufacturer (OEM) will be required to activate the software. The software on a new PC from an OEM may be activated in the factory. Product activation will not be required for licenses acquired by a customer through one of Microsoft's volume licensing programs such as Open License or Select License. Volume licensing programs can scale to even the smallest of businesses, as customers can qualify for the Microsoft Open License program by acquiring as few as five product licenses.