JPMorgan became vested upon the transfer. A total of 345 million of the 621 million eligible options were transferred, which resulted in additional stock-based compensation expense of $2.21 billion in the second quarter of fiscal year 2004. As a result of these changes, we expect stock-based compensation expense to continue to decrease for at least the next three fiscal years. 

The following table shows total stock-based compensation expense by segment and by income statement classification for fiscal years 2003, 2004 and 2005. 

 

 

In fiscal year 2006, we expect revenue to grow at a higher rate than fiscal year 2005, mainly due to the launches of new products. We expect higher revenue growth in fiscal year 2006 as compared to fiscal year 2005 in Home and Entertainment primarily driven by the launch of Xbox 360. We estimate worldwide PC shipments will grow between 7% to 9% and worldwide server unit shipments will grow between 11% to 13% in fiscal year 2006 as compared to fiscal year 2005. We do not expect a benefit from year-over-year foreign currency exchange rates in fiscal year 2006. 

We expect our operating income growth rate in fiscal year 2006 to exceed our revenue growth rate. Operating income is expected to reflect lower operating expenses due to lower costs for legal settlements than incurred in fiscal year 2005 and a reduction in stock-based compensation expense. The operating loss for Home and Entertainment is expected to increase in fiscal year 2006 driven by the launch of and investments in Xbox 360. 

 

SEGMENT PRODUCT REVENUE/OPERATING INCOME (LOSS) 

 

Our seven segments are Client; Server and Tools; Information Worker; Microsoft Business Solutions; MSN; Mobile and Embedded Devices; and Home and Entertainment. 

The revenue and operating income/(loss) amounts in this section are presented on a basis consistent with U.S. Generally Accepted Accounting Principles (GAAP) and include certain reconciling items attributable to each of the segments. The segment information appearing in Note 18 – Segment Information of the Notes to Financial Statements is presented on a basis consistent with the Company’s internal management reporting, in accordance with SFAS No. 131, Disclosures about Segments of an Enterprise and Related Information. Certain corporate level expenses have been excluded from our segment operating results and are analyzed separately. Fiscal years 2003 and 2004 amounts have been restated for certain internal reorganizations and to conform to the current period presentation including reclassifying certain legal settlements from business segments to corporate-level expense. 

 

Client 

 

Client includes revenue from Windows XP Professional and Home, Media Center Edition, Tablet PC Edition, and other standard Windows operating systems. Client revenue growth is correlated with the growth of corporate and consumer purchases of PCs from OEMs that pre-install versions of Windows operating systems because the OEM channel accounts for over 80% of total Client revenue. The operating results for all periods presented have been restated to reflect the reorganization of the Windows Security group from Server and Tools to