Customer Testimonials

InstallBuilder products are used by companies and governments all over the world in a diverse group of industries and applications. Read the testimonials below to hear what some of our customers have to say, or view a partial customer list to see the wide range of companies using InstallBuilder products.

Alfresco Software, Inc.

Alfresco is the recognized leader in Open Source Enterprise Content Management. Our focus on Simple Open Source - SOS - enables customers to achieve the full potential cost savings by making it simple to install, simple to use and simple to scale out an entire stack comprised of multiple open source software components. InstallBuilder is a key partner for us in this initiative reducing installation-related time, support and cost for the whole ECM stack.
Paul Holmes-HigginVP of Engineering, Alfresco Software, Inc.

About Alfresco Software, Inc.
Alfresco is the leading open source alternative for enterprise content management. It couples the innovation of open source with the stability of a true enterprise-class platform. The open source model allows Alfresco to use best-of-breed open source technologies and contributions from the open source community to get higher quality software produced more quickly at much lower cost.

Enterprise DB

InstallBuilder's comprehensive cross-platform support has proven invaluable to us, giving our customers a consistent installation experience no matter what operating system they run on as well as reducing our development costs by avoiding the need to support multiple technologies. InstallBuilder's excellent technical support team are the icing on the cake, helping us out quickly and efficiently whenever we need a hand.
Dave PageSenior Software Architect, Enterprise DB

About Enterprise DB
EnterpriseDB, the Enterprise PostgreSQL Company, provides enterprise-class PostgreSQL products and PostgreSQL services to help IT organizations be successful with the world's most advanced open source database. The company's Postgres Plus products are ideally suited for transaction-intensive applications requiring superior performance, massive scalability and compatibility with proprietary database products to reduce overall database costs. EnterpriseDB has offices in North America, Europe and Asia. The company was founded in 2004 and is headquartered in Bedford, MA. For more information, please call +1-781-357-3390, or visit www.enterprisedb.com

NuDesign Team

We were looking for easy to use installation software to support our products on Linux. We tried a couple well known commercial alternatives, but InstallBuilder was easier and more cost effective than it's competitors and it was a heck of a lot easier than creating an RPM distribution from scratch.
Brian MunshawV.P. Software Development, NuDesign Team

About NuDesign Team
NuDesign Technologies, Inc, headquartered in Toronto, Canada, provides Visual SNMP, CLI, web/XML management agent development applications, tools, software components and consulting services to developers worldwide. NuDesign's management software technologies are reliable, proven and quick-to-market solutions. Our highly automated SNMPv3 and CLI Agent tools and training resources, enable rapid prototyping and development, facilitate organization and your design process, while supporting multiple embedded and desktop environments with generation of very complete and ready to build SNMP and CLI agents.


InstallBuilder's services have helped us to provide Openbravo in an easy to install package, virtually eliminating implementation barriers. The automated installation process reduces installation-related support requests and costs. The InstallBuilder team has a wide range of experience and the high quality service they provide was a key element in choosing to work with them.
Ismael CiordiaChief Technology Officer, Openbravo

About Openbravo
Openbravo is the leading professional open source enterprise management solution for small and midsize enterprises.

MySQL Inc.

As the world's most popular open source database, MySQL has a diverse customer base that requires support for a wide range of operating systems and architectures. InstallBuilder's expertise in packaging software to make it easy to install in virtually any environment made it the perfect fit for MySQL's requirements. Working with InstallBuilder allows us to provide our users with a fast, easy installation process while at the same time reducing our support costs.
Rob YoungSenior Product Manager MySQL Network, MySQL Inc.

About MySQL Inc.
MySQL AB develops and markets a family of high performance, affordable database servers and tools. MySQL's mission is to make superior data management available and affordable for all.


The InstallBuilder installer has cut our build/test capital needs by 75%. The overhead in build/packaging for a dozen platforms is trivial. I now type in a command and I get installers that work on all the platforms I need to support. InstallBuilder's installer was a lifesaver, dramatically cutting down our build/release times.
Erik SwanChief Technical Splunker, Splunk

About Splunk
Splunk is a new search technology that lets you easily navigate all data recorded by your IT systems. Splunk's mission is to make navigating IT infrastructure as easy as surfing the Web. From one place you can make sense of log and configuration files from any device or application, message queues and the enterprise service bus, JMX notifications, SNMP traps and records stored in database tables, regardless of their format or source. Now you can reduce mean time to repair and improve service quality by diagnosing and resolving problems faster and more precisely.


Many administrators cite complexity of installing lots of different components as a roadblock to adopting open source software. One of our main goals for the Amanda Enterprise Edition was to enable backup administrators to very easily install, configure and manage a backup solution for their network. We invested heavily in developing our LAMP based Zmanda Management Console for configuring and managing Amanda. InstallBuilder was a natural partner for us to make the installation itself easier. We relied heavily on the LAMP expertise of InstallBuilder's developers to meet our aggressive timeframe to deliver a rapid installer for Amanda.
Chander KantCEO & Co-Founder, Zmanda

About Zmanda
Zmanda is the leader in open source backup and recovery products. Its Amanda Enterprise Edition is the certified, tested and fully supported version of the world's most popular open source backup and recovery software, Amanda. Amanda Enterprise Edition was designed with a focus on usability, security and application support that make it the right choice for today's technology-driven business environments. Zmanda Recovery Manager for MySQL is industry's first comprehensive, enterprise-class backup and recovery solution designed specifically for MySQL databases.


We use InstallBuilder to package our applications, improve and simplify the deployment of our tools, targeting an important range of platforms from Linux to Windows and MacOSX. Bitrock team has proven very helpful and the quality of their support has been a key element in our choice.
Mickael RemondPresident, Process-One

About Process-One
Process-one is a French company working worldwide in the field of parallel computing, developping applications that are highly available, scalable and fault-tolerant.

LimitState Ltd

Switching to InstallBuilder made it easy for us to add installation set building as part of our regular builds. The clarity and simplicity of the file format gives us confidence in what is included in the distribution, so we know that what worked last month will still work today. Last-minute worries about getting the installation set working are a thing of the past. When we've needed support, we've been delighted by InstallBuilder's remarkably rapid response, often in minutes rather than hours or days.
Matthew GilbertManaging Director, LimitState Ltd

About LimitState Ltd
LimitState software helps engineers to rapidly evaluate the safety of bodies and structures. We incorporate cutting edge optimization technology in our software to efficiently identify when a loaded solid body or structure will fail. Products include LimitState:RING, a world-leading software application for assessing the safety of masonry arch bridges (the single most common bridge type found in Europe) and LimitState:GEO, an exciting new software application for geotechnical stability problems, which allows users to quickly and easily analyze problems simultaneously involving slope stability, retaining walls, foundation footings and tunnels.


I have been using InstallBuilder for several years. It has proven to be the flexible installer utility that I had hoped. More important than its technical achievement is the support that comes with your product. Every question I've asked has been answered in a prompt and complete fashion. Several times special versions of InstallBuilder have been supplied to help me out of a problem prior to a new version release. Requests for enhancements have been considered graciously and the InstallBuilder team has always treated me respectfully regardless of whether the answers to my questions were obvious or subtle. I heartily recommend InstallBuilder.
Gary WernsingSenior Software Engineer, JEOL USA, Inc

About JEOL USA, Inc
JEOL is a leading producer of analytical instruments and tools for the scientific and industrial communities.


We are very happy to have InstallBuilder as our stack installer technology partner. I am impressed with their platform knowledge and responsive support. Sugar's FastStack product series offer incredible value and convenience with InstallBuilder installer technology.
Yun-Ping HsuVP of Engineering, SugarCRM

About SugarCRM
SugarCRM is the world's leading provider of commercial open source customer relationship management (CRM) software.

CAPS entreprise

InstallBuilder is a great tool for helping developers who don't want to spend too much time on packaging their software. The fully customizable installation procedure offers a nice graphical interface that fits the specificities of our product and allows an easy installation on both Linux and Windows platforms.
Eric CourtoisDevelopment Manager, CAPS entreprise

About CAPS entreprise
CAPS develops and commercializes innovative softwares for high performance application tuning in the domains of HPC and embedded systems. CAPS offers a whole range of development tools and services enabling its customers' applications to optimize the performance of multicore processors used by the last generation hardware.


InstallBuilder's InstallBuilder and Custom Stacks help us provide KnowledgeTree in an easy to install and robust form, removing what is traditionally a significant implementation barrier for would-be users of commercial open source software. Since KnowledgeTree is now deployed on a known and certified Apache, MySQL and PHP stack, our support costs are significantly lower.
Daniel ChalefDirector, KnowledgeTree Business Unit, KnowledgeTree

About KnowledgeTree
KnowledgeTree. Document Management System (DMS) is a commercial open source web-based document management system. KnowledgeTree has wide applicability in helping organisations meet regulatory compliance challenges such as the Sarbanes-Oxley Act, SEC Rule 17a-4 and FDA 21CFR11. The combination of open source, ease of use and low-cost proprietary extensions make KnowledgeTree an attractive choice for both small and larger organisations.


I'm finding new things I can do with InstallBuilder all the time, like post-processing the Windows install file so it's digitally signed and deployed by ftp to our website. I needed a cross-platform installer, and this is truly fantastic.
Matt GardnerSenior Analyst, Smoothpay/Gold

About Smoothpay/Gold
Smoothpay/Gold is intuitive payroll software that takes care of the detail. It's simple to use and because it does the hard work for you, it'll save you time and money. Smoothpay/Gold is freshly designed from the ground up to make the task of managing staff and payroll easy for Australian (and now Indonesian) companies.

Codice Software

Thanks to InstallBuilder, supporting multiple platforms has become much easier. With little effort, we were able to package our commercial tool, Plastic SCM, for Windows, Linux and OS X using only one project file. Also, InstallBuilder's support has been excellent, from the first few days when we were just getting started, to addressing bugs, to helping with suggestions for installer improvement.
Daniel PeñalbaSoftware Developer, Codice Software

About Codice Software
Codice Software is a privately held engineering company focused on the design and development of Software Configuration Management solutions. Codice's main goal is providing a high end SCM product, implementing all the functionalities of the top configuration management suites, and making it affordable to every software company around the globe. Codice's mission is contributing to the software industry making CM widely available to any-sized organization.


The previous product we used to install our Inovis TrustedLink Enterprise product didn't support Vista and required a costly upgrade to get that support. Switching to InstallBuilder provided that support and saved us money as well.
J. Matt HillsSr. Software Engineer, Inovis

About Inovis
Inovis is a leading provider of supply chain communication solutions that help businesses improve the flow of information across their trading community. Their industry-leading, integrated solutions standardize, synchronize and streamline communication to increase the percentage of perfect orders and expedite the order-to-payment lifecycle.

Excentis N.V.

Providing platform independent software requires an easy to use platform independent installer. InstallBuilder has removed the overhead of packaging our products for the different platforms and integrates perfectly in our build process. Furthermore, it streamlined our install process on the different platforms. InstallBuilder is also very responsive on questions and suggestions, providing excellent support, which allows us to focus on our own development.
Tom GhyselinckSoftware Developer, Excentis N.V.

About Excentis N.V.
Excentis (www.excentis.com) offers testing and consulting services and specialized training for the telecom and ICT industry. Its consultancy ranges from architecture designs, audits and operational support to field problem solving. Excentis executes specific test programs on network components and acts as an independent company to perform certification testing for EuroDOCSIS and EuroPacketCable equipment on behalf of EuroCableLabs. Born out of this hands-on testing expertise, the company also developed unique testing products, like the ByteBlower® traffic generator/analyzer.

Darkling Simulations

Darkling Simulations develops computer graphics tools for the game development, visual effects, and scientific simulation industries. As a software developer, I love InstallBuilder...it does what I need it to do without fighting me every step of the way.
August Swanson, Darkling Simulations

About Darkling Simulations
Darkling Simulations, LLC is a computer software company specializing in 3D graphics and visual simulation. We are dedicated to pushing visual software technology in new and interesting directions.

WeatherData Services, Inc

Before using InstallBuilder, we were creating our install packages manually, which took about twenty minutes. Through the use of InstallBuilder, we were able to fully automate this process integrated with a simple web interface, which now only takes a few minutes. We were also able to easily integrate some additional downloads for our software, which clients would have to install separately from the program, into one easy installation task. InstallBuilder has greatly reduced the time we have to spend on each individual install package.
Jonathan GrundmanTechnical Support Analyst, WeatherData Services, Inc

About WeatherData Services, Inc
WeatherData Services, Inc., an AccuWeather company, specializes in weather-risk management consulting and state-of-the-art weather forecasting and services to utility, transportation, manufacturing, educational and governmental clients throughout the U.S., Canada and Mexico.


The common interface reduces the documentation and support tasks associated with multi-platform installation. Allowing non-root, non-Administrator users the capability of installing broadens the potential user base. More important than the ease of development is that users have commented that the installation is 'really easy'.
Rick WarnerRelease Engineer, SnapLogic

About SnapLogic
SnapLogic is an innovative software company focused on the data integration problems prevalent in the Enterprise 2.0 era. Our mission is to simplify the integration of data and applications across the enterprise, regardless of format or location. This is especially important today as data now spans corporate boundaries to the cloud where SaaS, hosting providers, and web APIs are emerging. By providing a simple, consistent paradigm for data integration across the web, SnapLogic's open source solution enables our customers to choose the best applications and deployment strategies for their business in terms of cost and value delivered.

Matador Technologies

InstallBuilder has allowed us to greatly simplify the installation of our enterprise software offering. An automated installation process that we can replicate has been key to the successful completion of several complex multiplatform integration projects.
Gustavo ZambranaCTO., Matador Technologies

About Matador Technologies
Based in San Francisco, CA, Matador Technologies is a market-leading provider of Enterprise Application and Integration Testing solutions. Matador's products help companies successfully manage a services-oriented architecture by providing detailed visibility into the performance of enterprise systems, including middleware, enterprise applications and databases.


HelpSpot, a PHP application, is generally a breeze to install on Linux or Unix. Unfortunately, getting PHP running--and hooked to Microsoft SQL Server -- on Windows is tricky at best and left us spending a significant amount of time with our customers to get them up and running.
We wanted to alleviate this pain for our customers while giving them a more familiar Windows-like experience when installing HelpSpot. The team at InstallBuilder was able to put together a custom solution for us which not only allowed our users to install the standard WAMP stack but also optionally offered installing PHP with IIS and SQL Server.
Through the development process they provided truly awesome customer service by being extremely responsive and delivering a high quality product. It's been a huge success with our customers and in reducing some of our support load; HelpSpot installations on a Windows server are completed in minutes rather than hours.
InstallBuilder knows how to deliver great support and when you're talking about something as important as your products installer, nothing less will do.
Ian LandsmanFounder and President, UserScape

About UserScape
UserScape is the creator of HelpSpot, an easy to use, web-based customer service portal.

Phyx Inc.

Our latest release was flawless, thanks to InstallBuilder. We created multiple installer packages with over 130 files each, for Linux and OS X. InstallBuilder allowed us to create installer packages very efficiently.
Justin Bendo, Phyx Inc.

About Phyx Inc.
Phyx Inc. has been developing custom tools for Visual Effects since 2002. In 2007, Phyx Inc. brought some of these tools to public availablity. Phyx Inc. has created its tools with the involvement and guidance of professionals from Industrial Light and Magic (ILM), WETA Digital, Digital Domain, Sony Imageworks, Pixar, Kodak Cineon, and others.

Tomlab Optimization Inc.

As a small business software vendor you continuously need to improve to attract new customers. After evaluating several products with regards to price, features and support, we found BITROCK to be unbeatable. The availability of a professional installer for Linux and Mac OS X has become a great advantage to our users and reduced our support efforts substantially.
Marcus EdvallGlobal Business Manager, Tomlab Optimization Inc.

About Tomlab Optimization Inc.
Tomlab Optimization (http://tomopt.com) provides optimization and optimal control platforms for MATLAB, .NET and AMPL users. The systems are used at universities and advanced research centers around the world.

The Bitrock's product has a good structured approach to installer definition which allows us to build complex kits automatically. It also has an appealing native look-and-feel, which gives a good initial impression of our HVR replication product when the customer first installs it.
Steve SheilHVR Product Manager

PSB is a medium-sized ICT organization, specialized in the analysis, design, building and maintenance of high-quality information systems. PSB started in 1985. PSB's customers are large organizations, usually operating on a worldwide basis.


Just does what it is supposed to do. Using InstallBuilder we can focus on our core product, rather than worrying about each platform's installers… Besides the website, Hyves is expanding into the desktop space, starting with our chat application and a photo uploader tool. Together, these tools have been downloaded approx. 25,000 times in less than two weeks since we started using InstallBuilder.
Arend van BeelenProgrammer, Hyves

About Hyves
Hyves was started as a social networking site in 2004 and has been through a tremendous growth. According to independent research from STIR, Hyves is currently the biggest website of the Netherlands. Each month, more than 7 million Dutch people visit over 4 billion pages on Hyves.


Bitrock has helped our development cycle tremendously. Their cross platform install builder works right out of the box, and it is very easy to use.
David KohlerPhD CTO, WeoGeo

About WeoGeo
WeoGeo is a one-stop marketplace for geospatial content that gives surveyors, engineers, cartographers, and scientists the ability to store, search, and exchange raster, CAD, and GIS mapping products. By increasing the persistence, accessibility, and marketability of geospatial content, WeoGeo improves efficiency within the geospatial industry. This, in turn, improves decision making in the use of human and natural resources.

Janus Software

InstallBuilder Installers have been a great help in deploying our server products. We can now provide an identical user experience across all our supported platforms. The ability to build all installers from a single environment has been a big plus. We have been able to save time and money with Bitrock. Their superb after sales service helped us get up to speed with the builder product quickly and our support team never had to deal with failing installers: Bitrock technology just works.
Paul RuizendaalPresident, Janus Software

About Janus Software
The Janus Software mission is to bring easy to use, powerful applications to both Windows and Linux that combine the best elements from the Unix and Desktop traditions. Its flagship products are Phoenix Object Basic and the Firebird RDBMS. Together they far exceed tools like MS Access or Powerbuilder in capabilities and work on both Windows and Linux systems.


We are highly pleased with the Bitrock InstallBuilder. The handling is intuitive and easy, including the more advanced features like the installing of additional project libraries in specific directories. The best part: No need for several tools for different platforms. The Multiplatform CDROM Build makes it very simple to create all needed installation files for different platforms in one step - very cool.
Joachim BuermannPresident, IFTOOLS

IFTOOLS produces 'serial realtime analyser' hardware and software for analysing rs232 connections between any devices (embedded systems, PC's and so one) with a timing solution of 1usec. IFTOOLS also develops the open source library ctb (communication toolbox) and tools to make developing software for serial communication easier.


Thanks to InstallBuilder we have noticeably reduced the complexity of the installation process of our products, both creating the installers for different platforms and for the end user. Our end users now benefit from the extreme ease of use and help that InstallBuilder installers provide.
Another reason that made us realize that InstallBuilder was the right choice for our needs was the quality of the technical support and the kindness and professionalism that the InstallBuilder Team has demonstrated in all the stages of our projects, and everything at an extremely competitive price.
Additionally, using InstallBuilder we indirectly contribute to the development of Open Source software, thanks to the policy of giving free licenses that InstallBuilder has for this kind of projects.
Abdul PallarésR&D Engineer, Concatel

About Concatel
Founded in 1996, Concatel is a leading Spanish provider of Information and Communication Technology Services located in Barcelona. Concatel is part of the Vanture Group.


Pentaho, creator of the world's most popular open source business intelligence (BI) suite, is focused on providing a rich, out-of-the-box experience for our users. InstallBuilder is a key partner in delivering that experience. Pentaho integrates tightly with J2EE application servers, and our InstallBuilder-based installation allows our users to apply the power of Pentaho's BI technology without the complexity of custom-configuring their J2EE environment.
Anthony de ShazorDirector of Product Engineering, Pentaho

About Pentaho
Pentaho manages, facilitates, supports, and takes the lead development role in the Pentaho BI (Business Intelligence) Project.


Time to market is critical for open source applications. JasperSoft uses InstallBuilder InstallBuilder to quickly create simple to use, multi-platform installers for JasperServer and JasperAnalysis. As the leading solution for open source Business Intelligence, JasperSoft supports a complex combination of operating systems, application servers, and databases; including Red Hat and Windows, JBoss and Websphere, and Oracle and MySQL. InstallBuilder makes this support easy to manage. In addition, cost-effective consulting services from InstallBuilder have provided us with turn-key installers for a variety of commercial and open source platforms.
Michael MoodyVP of Engineering, JasperSoft

About JasperSoft
JasperSoft is the market leader in open source business intelligence (BI). With more than 2.5 million downloads worldwide and more than 7,000 commercial customers in 96 countries; JasperSoft offers the most widely used open source business intelligence software in the world. The JasperSoft Business Intelligence Suite is comprised of an interactive reporting server, graphical and ad hoc report design interfaces, OLAP analysis, an ETL tool for data integration, and a Java reporting library for scalable small, medium, and large enterprises, for use as either stand-alone or embedded business intelligence applications. JasperSoft is based in San Francisco and is backed by leading venture capital firms Morgenthaler Ventures, DCM, Partech International, Scale Venture Partners, and SAP Ventures.


I chose InstallBuilder installer for Scrivener for Windows and Linux because I needed
three key things:

  1. A robust cross platform installer for Windows and Linux.
  2. Highly customizable and granular functionality.
  3. Responsive, 'real' person support.

I got all three. The last two, in bucket loads!
Lee PowellDeveloper, Scrivener

About Scrivener
Literature & Latte was founded in 2006 with the sole purpose of creating software that aids in the creative process of writing long texts.


We have looked at different installer solutions. For us it was a key feature to support all platforms (classic Unixes, Linux and Windows) with a single installer built from a single installer config file. During the evaluation we experienced InstallBuilders excellent and outstanding support. The very small overhead of the installers, the human readable xml installer config file and quick turnaround time for feature requests even during evaluation convinced us. Having used InstallBuilder in a productive environment for over two years now, we are still 100% sure it was the right decision to select InstallBuilder for our installation tasks.
Wolfgang TrautenbergDirector Product Development, SIMPACK AG

SIMPACK AG, an international and steadily growing company, develops the virtual prototyping and 3D-MBS simulation software SIMPACK. With the headquarters in Gilching, near Munich, Germany, SIMPACK AG has subsidiaries and distributors all over the world. SIMPACK AG is solely responsible for the development of the multi-body simulation tool SIMPACK. SIMPACK AG offers high-level consulting and engineering services in the field of virtual prototyping and prides itself in having quick response times to customers' needs and wishes; furthermore SIMPACK AG also offers training courses for the SIMPACK MBS software.


InstallBuilder has been really good to use and a very intuitive interface makes learning the program very easy. The best thing about it however is the xml format. Other installers require inventing the wheel again and learning new scripts which we don't have the time or money to do. It's great to have an installer tool that developers can easily use.
Martin AdamsSenior Software Developer, WildScaper

About WildScaper
WildScaper produces educational software for building environmental games. WildScaper provides a powerful combination of visual painting tools and media content, enabling students at early skill levels to create visually appealing environmental software games quickly. WildScaper and the standalone player WildPlayer, provide the tools students need in an integrated, streamlined environment for designing and distributing their environmental games and stories as standalone multimedia software programs.

Vivio Technologies

When Vivio first began creating installers for OpenBD, they were written as a BASH shell script. These installers worked well, but they were amazingly difficult to maintain and were not cross-platform. We needed a maintainable, cross-platform system to help our community get their servers up and running quickly and easily.

We examined a multitude of other solutions, but through all our evaluations InstallBuilder emerged as the most comprehensive, feature-rich, and easy-to-use multi-platform installer we found. Not only is the software itself phenomenal, but the InstallBuilder support team is truly amazing. All of our questions were answered almost immediately, with comprehensive, knowledgeable, and helpful information. InstallBuilder is the perfect example of how any company should do business. Thank you InstallBuilder!
Jordan MichaelsCEO, Vivio Technologies

About Vivio Technologies
Open BlueDragon (www.openbluedragon.org) is the open source version of the popular BlueDragon CFML engine. Released as a GPLv3 open source project, on the 3rd of May 2008, Open BlueDragon brought together a community of users and experts to drive the future of CFML as a whole.

KirstensViewer Group

InstallBuilder Installer made the life of linux users (especially who came from other operating systems) a lot quicker and let us deliver in a simple way all our releases and RC. Software came with a full and comprehensive documentation and manual, very easy to use, very short to have it fully working on custom design and project. Since first release (our internal RC, to test it before deploy on final release) got a great number of positive feedback from whole KV users community on linux platforms (both i686 and x86_64).
Francesco "Sythos" RabbiKirstens Viewer Senior Developer Linux Branch, KirstensViewer Group

About KirstensViewer Group
Our project is called "KirstensViewer" ( http://www.kirstensviewer.com ), is a browser/viewer for metaverse and virtual worlds, from LindenLabs (r) traditional one to the various variants of openSIM. Kirstens Viewer series S21 (now working on release 7) is a point of concept of graphics rendering pipeline, it bundles advanced features from realtime shadow and sun/light, deep of field and avatar human bouncyness. The requirements are a bit higher than standards of other kind of viewer, and till now linux users suffered a lot the missing graphic installer.