IRVINE, CA - October 14, 2005 - VitalStream, Inc. (OTC Bulletin Board: VSTH), the world leader in audio and video streaming, today announced the next generation of its Streaming Service for Windows Media, providing its customers with enhanced load-balanced traffic management, authentication of live and on-demand events and advanced business intelligence tools.

VitalStream's Streaming Service supports the latest versions of Windows Media and is compatible with any Web-services authentication system, including .NET and SOAP-based verification systems. It now provides organizations with more options for delivering and protecting streaming video on their Web sites. Specific product features include:

* Globally load-balanced traffic management - VitalStream's system is architected specifically for massive capacity and scalability. Technology from Radware, a leading provider of integrated application delivery solutions, enhances VitalStream's selection of the ideal data center from which to get a data stream, providing customers with quicker, more reliable delivery.

* Authentication of events - VitalStream's authentication services act as a gatekeeper by letting only authorized viewers access content on customer Web sites; now available for live as well as on-demand events.

* Flexible, easy-to-use workflow - An all new project manager-focused MediaConsole(r) allows customers to easily control their workflow and choose which media platform to play content.

* Geographically-based reporting - Global business intelligence shows customers where their end-users are located worldwide, helping them determine the best way to organize media for marketing or other audience targeting purposes. Enterprises can now see which regions are reaching more customers with their streaming efforts, and bill them accordingly.

A Web services-based reporting system offers an industry-standard SOAP-based portal, enabling users to connect to the server and create their own data feeds, target specific customers and identify problem areas.

"As the leading source for streaming media and content delivery solutions, VitalStream is consistently on the cutting edge," said Philip N. Kaplan, president and chief operating officer of VitalStream. "Our latest product offering ensures that we provide our customers with additional tools that, together with our existing product suite, offer the most reliable, secure services available for Windows Media streaming."

"VitalStream's streaming platform attracts customers based on its speed of delivery and service reliability," said Dr. Michelle Blank, chief marketing officer of Radware. "The combination of our solution for optimizing the delivery of applications over IP networks with VitalStream's technology assures the fastest, most reliable and secure delivery of streaming media to VitalStream customers so they get the best viewing user experience. "

About VitalStream, Inc.

VitalStream, Inc., a wholly owned subsidiary of VitalStream Holdings, Inc. (OTC: VSTH), is an international provider of integrated content delivery services that enable businesses to broadcast digital media and communications to worldwide audiences via the Internet. Leading in market innovation, VitalStream(r) provides complete solutions, including audio and video streaming, live event broadcasting, media asset management, integrated Web hosting and consulting services that seamlessly integrate with today's leading streaming media technologies. To ensure a worldwide reach, VitalStream engineered its award-winning content delivery network certified for quality delivery in the United States, Europe and Asia. For more information, visit www.vitalstream.com.

About Radware

Radware (NASDAQ:RDWR) is the global leader in integrated application delivery solutions, assuring the full availability, maximum performance and complete security of all business critical networked applications while dramatically cutting operating and scaling costs. Over 3,000 enterprises and carriers worldwide use Radware application-smart switches to drive business productivity and improve profitability by adding critical application intelligence to their IP infrastructure, making networks more responsive to specific business processes. Radware's APSolute product family provides the most complete set of application front-end, remote access and security capabilities for application-smart networking to ensure faster, more reliable and secure business transactions. Learn more on how Radware application delivery solutions can enable you to get the most of your investments in IT infrastructure and people. www.radware.com.

Forward Looking Statements

This news release contains forward-looking statements made in reliance upon the safe harbor provisions of Section 27A of the Securities Act of 1933 and Section 21E of the Securities Exchange Act of 1934. Actual results may differ materially from those indicated by these statements as a result of various important factors including, but not limited to, the possibility that our new product offerings or releases based upon or incorporating our partners' proprietary technology may not predictably be accepted by our customers, perform as anticipated or be available longer-term due to arrangements that may be terminable under certain circumstances, we may be unable to keep up with evolving industry standards and changing user needs, our network security and performance may be adversely affected by both internal and external causes, and other factors that are discussed in "Risk Factors" and elsewhere in the Annual Report on Form 10-K of VitalStream Holdings, Inc. and other documents periodically filed by VitalStream Holdings, Inc. with the SEC. Such forward-looking statements speak only as of the date of this release. The company is under no obligation and expressly disclaims any obligation to update or revise any forward-looking statements whether as a result of new information, future events or otherwise.

VitalStream is a registered trademark of VitalStream, Inc. All other trademarks are property of their respective holders.