1. Acquisition of NetScaler Mark Templeton, Citrix President and CEO B.V. Jagadeesh, NetScaler President and CEO June 2, 2005

2. 2 Citrix Company Confidential © 2005 Citrix Systems, Inc.—All rights reserved. Citrix Systems: Overview Leader in Access Infrastructure solutions NASDAQ 100 and S&P 500 company (CTXS) Top-quartile financial performance –$741 million in 2004 revenue (26% growth) –27% operating margin in 2004 2,700 employees in 25 countries 160,000 customers worldwide –100% of F100, 99% of F500, 97% of FG100 –95% customer loyalty rating 7,000 partners in over 100 countries –Top rated in channel partner satisfaction

3. 3 Citrix Company Confidential © 2005 Citrix Systems, Inc.—All rights reserved. NetScaler: Overview Headquarters: San Jose, California Market Leader in Application Networking –Pioneered next-generation technology for application acceleration –Award-winning products, consistently ranked #1 in performance Strong, Experienced Team –Shared vision with common values and cultures –200+ employees with R&D teams in Silicon Valley and India –Industry veteran and visionary, B.V. Jagadeesh, CEO 3000+ customer deployments worldwide –Powers the top 5 Internet sites –75% of Internet users touch NetScaler systems at least once each day –500+ Global 2000 enterprises in all industry segments –Ranked #1 in customer satisfaction High Growth Business –100% year-over-year growth, $25M in sales in 2004

4. 4 Citrix Company Confidential © 2005 Citrix Systems, Inc.—All rights reserved. Shared Vision, Values & Culture Vision: Improving access to applications –Fast growing company founded on the vision to accelerate and secure access to applications –Deep understanding of what it takes to deliver the best access experience for any user to any application from any location Values: respect and integrity –Proven track record in facing adversity/turbulence and emerging stronger as a result –Professionals that place a premium on strategic vision, technical innovation and a desire to win Culture: focus on customers –A culture with a passion for making customers successful Slide for Employee Presentations Only

5. 5 Citrix Company Confidential © 2005 Citrix Systems, Inc.—All rights reserved. Networking Security Management Access Infrastructure Presentation Services On-demand Assistance Real-Time Collaboration SSL VPN Single Sign-on Remote Desktop Access Strong Market Segment Fit to Access Infrastructure Category Application Networking

6. 6 Citrix Company Confidential © 2005 Citrix Systems, Inc.—All rights reserved. Strong Market Segment Fit to Access Infrastructure Category Networking Security Management Access Infrastructure Presentation Services On-demand Assistance Real-Time Collaboration SSL VPN Single Sign-on Remote Desktop Access Application Networking Application Security $690M (50% CAGR) Application Traffic Management $900M (19% CAGR) Application Acceleration & Optimization $1,470M (67% CAGR) Estimated 40% CAGR $3.1B market by 2007 Application Networking Source: Gartner, IDC, Infonetics, Frost & Sullivan and company estimates

7. 7 Citrix Company Confidential © 2005 Citrix Systems, Inc.—All rights reserved. Application Networking Adds application fluency to traditional networking Traditional Networking Application Networking Application-Fluent Layers 4 - 7 Application-Aware Layers 1 - 3

8. 8 Citrix Company Confidential © 2005 Citrix Systems, Inc.—All rights reserved. Legacy Client/Server 3-Tier Enterprise Web XML Web Services Citrix & Netscaler Powerful Access Solutions For Every Application ? Browser Front End

9. 9 Citrix Company Confidential © 2005 Citrix Systems, Inc.—All rights reserved. Legacy Client/Server 3-Tier XML Web Services Citrix & Netscaler Powerful Access Solutions For Every Application ? + Enterprise Web Browser Front End

10. 10 Citrix Company Confidential © 2005 Citrix Systems, Inc.—All rights reserved. Best Experience UsersManagementIT Focus on tasks Make access Invisible Focus on business Make access Transparent Focus on service Make access Visible Extending Our Unique Brand Value

11. 11 Citrix Company Confidential © 2005 Citrix Systems, Inc.—All rights reserved. Enterprise Resources Citrix Access Platform Access Scenarios IP Phone Travel Office Home PC Smartphone Best Access Experience Any Enterprise Resource, Any Location, Any Device Applications Data Voice

12. 12 Citrix Company Confidential © 2005 Citrix Systems, Inc.—All rights reserved. Enterprise Resources Citrix Access Platform The best access to business information from anywhere Access Scenarios

13. 13 Citrix Company Confidential © 2005 Citrix Systems, Inc.—All rights reserved. Enterprise Resources NetScaler Expands & Enhances Delivery Services in the Citrix Access Platform The NetScaler Solution Delivers Best-in-Class Scalability Optimization Acceleration Reliability Security Access Scenarios

14. 14 Citrix Company Confidential © 2005 Citrix Systems, Inc.—All rights reserved. Enterprise Resources Enhances Existing Citrix Presentation Server Deployments Adding NetScaler lets customers: Enjoy all the benefits of Citrix at higher speeds and lower cost Speed response time to end users Reduce number of Citrix servers needed to deliver the same value Access Scenarios

15. 15 Citrix Company Confidential © 2005 Citrix Systems, Inc.—All rights reserved. Enterprise Resources Opens New Market Opportunities for Web-based Applications Access Scenarios Adding NetScaler lets customers: Accelerate both Web and non-Web applications by 5x or more Accelerate the access of data, files and email over the WAN Strengthen end-to-end security Reduce WAN bandwidth costs

16. 16 Citrix Company Confidential © 2005 Citrix Systems, Inc.—All rights reserved. Enterprise Resources Access Scenarios Creates a Powerful Combined Value Citrix + NetScaler Delivers the Best Access Experience for: Any application Any protocol Any user Any location Any network Any device

17. 17 Citrix Company Confidential © 2005 Citrix Systems, Inc.—All rights reserved. Summary A great strategic, technical and cultural fit –Builds on acquisition successes of Expertcity and Net6 Adds significant talent and expertise in Application Networking –An emerging, high-growth market and a significant component of Access Infrastructure Strengthens our core customer value: providing the best access experience for any user to any application from anywhere –Enhances Delivery Services element of the Citrix Access Platform –Optimizes the performance of existing applications deployed via Citrix Presentation Server –Adds new value for deploying Web-based applications –Ideal platform for future application architectures

18. 18 Citrix Company Confidential © 2005 Citrix Systems, Inc.—All rights reserved. Working Together Create stand-alone Application Networking Group within Citrix –B.V. Jagadeesh, Group Vice President and General Manager will run the Application Networking Group, reporting to Mark Templeton, CEO –NetScaler organizational structure will remain unchanged –Retaining all NetScaler employees will be a top priority Enhance and grow Silicon Valley presence Market and sell NetScaler-branded products separately and as part of the Citrix Access Platform Expand reach of NetScaler products through Citrix channel — 5,000 partners in 100 countries

19. Terms of the Deal David Henshall, Chief Financial Officer