A Smarter Approach to VDI Intelligent Desktop Virtualization © 2011 Virtual Computer Inc. – Investor Presentation, Company Confidential

Who are we? Virtual Computer is the market leader in intelligent desktop virtualization. Our product NxTop combines client-hosted VDI with centralized management that uniquely delivers desktop management, cost reduction and user experience benefits that can only be enabled through virtualization. © 2011 Virtual Computer Inc.2

What do we do? By combining and enhancing Xen the markets most broadly adopted type-1 hypervisor with a powerful central management system, Virtual Computer is able to offer full control of the end-point to IT and new capabilities to users Put simply we Make PCs more manageable, reliable and secure. 2.Dramatically lower the cost of PC management 3.Provide the end user freedom and flexibility © 2011 Virtual Computer Inc.3

Discussion Today The Challenge Solution Overview Industry Validation Technical Innovations Demonstrations © 2011 Virtual Computer Inc. – Investor Presentation, Company Confidential4

Tension Between Users & IT End UsersIT Pros Wants Freedom and Flexibility Generation Y Mentality Productivity/Performance All my stuff in one place I want to use this device My PC broke Wants Freedom and Flexibility Generation Y Mentality Productivity/Performance All my stuff in one place I want to use this device My PC broke Wants Manageability, Security & Reliability Controlled Network Access Locked down OS Data Protection/Security Predictable Configurations Consistent SLAs Wants Manageability, Security & Reliability Controlled Network Access Locked down OS Data Protection/Security Predictable Configurations Consistent SLAs NxTop delivers balance and harmony © 2011 Virtual Computer Inc.

Unbundling PC Elements © 2010 Virtual Computer Inc. – Company Confidential6 Hardware Policy Operating System Applications User Data Management Agents Component isolation means more Flexibility, Manageability, Reliability and Security PCs Today are Glued Together Operating System Hardware User Data Applications Policy Managed Platform Virtual Computer Breaks them Apart

© 2011 Virtual Computer Inc. – Investor Presentation, Company Confidential7

Benefit: >90% Reduction in Infrastructure Cost versus Server Hosted VDI 8© 2011 Virtual Computer Inc. – Company Confidential Storage Arrays Management Server Network Switches Execution Servers Server Hosted: VMware, Citrix Management Server Virtual Computer

Discussion Today The Challenge Solution Overview Industry Validation Technical Innovations Demonstrations © 2011 Virtual Computer Inc. – Investor Presentation, Company Confidential9

Manage thousands of computers as easy as managing one… OS Application OSOS OSOS OSOS OSOS OSOS OSOS OSOS OSOS OSOS OSOS OSOS OSOS OSOS OSOS OSOS OSOS OSOS OSOS OSOS OSOS OSOS OSOS OSOS OSOS APPAPP APPAPP APPAPP APPAPP APPAPP APPAPP APPAPP APPAPP APPAPP APPAPP APPAPP APPAPP APPAPP APPAPP APPAPP APPAPP APPAPP APPAPP APPAPP APPAPP APPAPP APPAPP APPAPP APPAPP Migrate to latest OS is easy. I am just going to push the OS down to everybody. Roll out an application is simple as OSOS OSOS APPAPP APPAPP APPAPP APPAPP

Centrally Manage 1000s of PCs as Easily as One Provision 1000s of Windows PCs AES 256 Encryption Snapback and Rollback Updates System & Apps Provide a Single Master Image Fail-safe Patching Back-up and Rapid Restore

Intelligent Desktop Virtualization © 2011 Virtual Computer Inc. – Investor Presentation, Company Confidential12

Simple, Powerful Features and Benefits 13 © 2011 Virtual Computer Inc. – Company Confidential Fast provisioning & portability Fail-safe one-to-many patching Application delivery Integrated helpdesk Provisioning and Management Backup and Recovery Security and Control Productivity and Delight Profiles, preferences, settings User data backup & restore Instant re-provisioning Snap-back and snap-forward Trusted boot enabled Full disk encryptionz USB filtering Expiration, lockout, remote kill Fast-boot into Google Chrome environment Integrated cloud access: Chrome, RDP, Citrix Quest Locally managed and/or Personal VM Instant recovery from OS corruption

Provision 1000s of PCs Install Apps Apply Patches Rollback Patches Virtual Computer NxTop* Intelligent Desktop Virtualization Made Easy Automated Backup

Configurable USB Filtering AES-256 Full Disk Encryption Remote Kill Policy Controls Native performance and NO underlying OS to be compromised Timed Based Lockout True Type 1 Hypervisor for Maximum Security Trusted Execution Technology True Type-1 Hypervisor

Client-Side Execution for Both Options!!! Data-less Endpoint Storage Array One single management platform – multiple deployment options Ultimate VDI Alternative Local Storage Option VDI Servers

Discussion Today The Challenge Solution Overview Industry Validation Technical Innovations Demonstrations © 2011 Virtual Computer Inc. – Investor Presentation, Company Confidential17

Awards Analysts Prediction: 90% of VDI will be client based – Brian Madden, brianmadden.com Virtual Computer wins the race for bare-metal client virtualization. – Rachel Chalmers, The 451 Group Partners © 2011 Virtual Computer Inc. – Investor Presentation, Company Confidential 18 NxTop Industry Validation

© 2011 Virtual Computer Inc.19 Industry Support NxTop from Virtual Computer is another example of the user experience benefits enabled through hardware-based virtualization said Rick Echevarria, vice president, Intel Architecture Group, GM Business Client Platform Division NxTop working in combination with Microsoft System Center offers a powerful new option for realizing the management benefits of desktop virtualization whilst leveraging existing infrastructure investment said Sergio Klarreich, Director Strategic Alliances, Management and Security Division at Microsoft Corp.

© 2011 Virtual Computer Inc.20 Customer Spotlight NxTop will dramatically change the way I deploy and manage desktops, freeing up valuable IT resources and transforming my operation from being reactive to proactive. – Charles Miller, Town of Lincoln (MA) We were seriously considering a server-based VDI solution, but when we tested NxTop we were amazed that we could run it without any major incremental investments in server or network infrastructure. – Nathan McBride, Executive Director of IT, AMAG Pharmaceuticals

Discussion Today The Challenge Solution Overview Industry Validation Technical Innovations Demonstrations © 2011 Virtual Computer Inc. – Investor Presentation, Company Confidential21

The Evolved PC Stack © 2010 Virtual Computer Inc. – Company Confidential22

Engine Architecture Type-1 Hypervisor – Based on Xen with extensive modifications to support PCs – Fully virtualized platform – Secure communication to server infrastructure – Quick-boot Linux VM (NxTop Connect with ) 23 © 2011 Virtual Computer Inc. – Company Confidential Management and Control Domain (Dom0) NxTop Connect Services Domain (DomS) Hypervisor (Open Source) … … Engine 11 Applications Virtual HW Windows 7 User Data Virtual Machine #N Applications Virtual HW Win XP User Data Virtual Machine #1 Hardware WAN/LAN Center

Shared Virtual Machines are Layered © 2010 Virtual Computer Inc. – Company Confidential24 Center Discard on reboot/patch Snapshot for backup Local VHD Persistent Local Data (not backed up) Page.sys, temporary internet files, search indexes,.ost files One-to-many from server Patch System VHD COW Shared System Disk One to many: patch once, publish many User VHD COW Persistent User Data Backed-up on server for instant re-provisioning

NxTop Center Architecture 25 © 2011 Virtual Computer Inc. – Company Confidential Central Server Hyper-V ISSCI Console Control Repository LDAP SQL File System API Center

NxTop Enterprise: Hierarchical Mgmt Remote Caching Server – Optimized for low-bandwidth/WAN environments – At Remote Office Local LAN operations for publishing/backups One copy of OS image and patches Backups stored locally in Remote Office – At Central Office Single view of NxTop Environment through NxTop Center 26 © 2011 Virtual Computer Inc. – Company Confidential Central Server WAN Center Remote Server Center LAN

NxTop Engine: End-User Experience* *Product can be configured to bypass this interface 27 Local VM NxTop Connect (when enabled) Control Panel Network Status Message Center Power Management On/Off © 2011 Virtual Computer Inc.

NxTop Connect Workspace Integrated workspace with Apple-like dock Applications configured by central management server – Xen Receiver, RDP, Google Chrome – Inter-VM shared file system – Print server (future) 28 Application Dock Terminal Services Session (RDP) Google Chrome Browser Skype NxTop Connect Services Domain (DomS) © 2011 Virtual Computer Inc.

29 Demo © 2011 Virtual Computer Inc.