Xbox 360 consoles during fiscal year 2006. The revenue growth was also attributable to $140 million or 15% growth from our other product lines, primarily as a result of an increase in PC games sales due to significant new game releases, especially “Age of Empires III”, and an increase in MSTV revenue due to deployments in fiscal year 2006. Revenue increased in fiscal year 2005 primarily due to significant new product launches, which resulted in a $416 million or 23% increase in Xbox revenue. Halo 2 was introduced in the second quarter of fiscal year 2005 and generated over $300 million in revenue in fiscal year 2005. Revenue from consumer hardware and software, PC games, and TV platforms declined $50 million or 5% compared to fiscal year 2004 due to lower PC games software sales. 

Home and Entertainment operating loss increased in fiscal year 2006 primarily as a result of a $1.64 billion increase in cost of revenue resulting from the number of Xbox 360 consoles sold and higher Xbox 360 unit costs, partially offset by the revenue growth. Our fiscal year 2006 operating loss increased due to the significant impact of Halo 2 in fiscal year 2005. Headcount-related costs increased 5% reflecting both a 19% increase in headcount and an increase in salaries and benefits for existing headcount, partially offset by a decrease in stock-based compensation expense. The fiscal year 2005 operating loss decreased primarily due to an increase in high margin Xbox software sales, lower Xbox console units costs, a $90 million lower-of-cost-or-market inventory adjustment recorded in fiscal year 2004, and a $219 million decrease in stock-based compensation expense. The decrease was partially offset by an increase in costs associated with Xbox 360 console development and related launch efforts. 

 

Corporate-Level Activity 

 

 

Certain corporate-level expenses are not allocated to our segments. Those expenses primarily include corporate operations related to broad-based sales and marketing, product support services, human resources, legal, finance, information technology, corporate development and procurement activities, research and development and other costs, and legal settlements and contingencies. 

Corporate-level expenses decreased in fiscal year 2006, primarily reflecting a $991 million decrease in costs for legal settlements and legal contingencies partially offset by an $84 million increase in headcount-related costs. We incurred $1.32 billion in legal charges during fiscal year 2006 including settlement expense of $361 million related to our settlement with RealNetworks, Inc. as well as other intellectual property and antitrust matters, and the €281 million ($351 million) fine imposed by the European Commission in July 2006 related to its 2004 decision in its competition law investigation of Microsoft, as compared to $2.31 billion in legal charges incurred during the prior year primarily related to settlements with Novell, Inc., Gateway, IBM, and other antitrust and competition law matters. Headcount-related costs increased 5% during the twelve months ended June 30, 2006 reflecting both a 23% increase in headcount and an increase in salaries and