1. Introduction To The Wireless WAN Program Hong Liu Program Manager – WWAN Windows Networking and Devices Microsoft Corporation

2. Agenda WWAN in Windows Vista Market drivers WWAN program for future Windows releases Technical overview Q&A

3. WWAN In Windows Vista Similar user experience as in Windows XP 3rd party drivers and clients WWAN device plugged in As modem using dial-up networking As Ethernet emulation using NDIS WWAN drivers will be signed as “unclassified devices” in Windows Vista

4. Rapidly Growing 3G Market 194 3G Carriers in 84 Countries Worldwide (4/10/06) Over 266 million reported 3G subscribers (2/28/06) Rapid innovation in air interface technologies Sources: 3GToday Website

5. Trends In WWAN Access Improved network infrastructure Increasing network coverage Near broadband throughput Flexible/competitive pricing Accelerated laptop penetration Laptops will make up a third of all PCs in 2006 Emerging market PC shipments are growing 3X as fast as developed market New laptops shipped with built-in WWAN modules Potential for sustaining subscriber growth Expanding mobile workforce in business sector Increasing adoption from consumer sector Exciting data services

6. Thriving WWAN Ecosystem Cellular Carrier IHV PC OEM End User Chip Vendor ISV

7. Post Vista Goals Integrate WWAN support into future releases of Windows Support diverse air interfaces and form factors Integrate UI with Uni-Fi framework Facilitate carrier/OEM activation/provisioning Ensure robust WWAN driver quality Uniform NDIS6 driver model WHQL Logo program

8. Post Vista Goals Build upon Windows networking manageability framework Group policy (GP) Command line interface (CLI) Network location management (NLM) Diagnostics Engage ecosystem partners for adoption Uniform driver model and WWAN APIs Consistent UX across carriers and hardware Enable new wireless service scenarios Cross-tech connection management and mobility Emerging business models

9. Value To Ecosystem IHVs Uniform driver model simplifies development Cost savings in client software dev and customer care PC OEMs Uniform software platform and hardware driver model Cost savings in logistics and customer care Consumers Robust driver quality and consistent user experiences Enterprises Better manageability for enterprise deployments Carriers Cost savings in client software dev and customer care Co-existence of user experience and branding ISVs Leverage core competency: Carrier specific services

10. Windows WWAN Program Roadmap Windows Vista RTM Future Windows Releases Maintain UX parity with XP Build WWAN platform WWAN service WWAN APIs NDIS6 driver IT Manageability WHQL Logo Enable ubiquitous networking Connection Mgmt Uni-Fi, NLM Diagnostics Multi-tech roaming and hand-over Support emerging technologies Mobile WiMAX 802.16e

11. WWAN Architecture WWAN Driver Model WWAN APIs User Mode Kernel Mode Service App UIGPCLI WWAN Service MP Provided by: Microsoft ISV OEM IHV 3 rd Party Apps

12. Driver Model Scope Support both GSM and CDMA technologies GSM – GPRS/EDGE/UMTS/HSDPA CDMA – 1xRTT/1xEV-DO/1xEV-DO RevA Unify diverse connectivity options Embedded – Onboard/USB-internal/ miniPCI/PCI Express Local – PCMCIA/USB-dongle Remote – USB-cable/Bluetooth Build on NDIS 6.0 only for Windows Vista and onward

13. Driver Design Principles Support existing technologies and business models Focus on common functionalities among all air interfaces Expose each device as Ethernet emulation miniport Let the driver handle WWAN specific protocols, including PPP and Mobile IP Work with the industry to transition from legacy DUN and private NDIS models to pure NDIS6.0 model

14. WWAN API Functions Service activation and provisioning Network selection and registration Connection setup and teardown Profile management SIM/on-card memory access

15. Call To Action Please contact if you are interested in working with Microsoft under NDA NDIS 6.0 driver model WWAN APIs WHQL Logo program wwanext @ microsoft.com

16. Q & A Thank you very much!

17. © 2006 Microsoft Corporation. All rights reserved. Microsoft, Windows, Windows Vista and other product names are or may be registered trademarks and/or trademarks in the U.S. and/or other countries. The information herein is for informational purposes only and represents the current view of Microsoft Corporation as of the date of this presentation. Because Microsoft must respond to changing market conditions, it should not be interpreted to be a commitment on the part of Microsoft, and Microsoft cannot guarantee the accuracy of any information provided after the date of this presentation. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.