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HP provides customers with the opportunity to standardize their IT environment on any operating system they choose. No matter what challenge your company is facing, HP can help you simplify your IT environment and make it easier to change. HP-UX 11i HP-UX 11i is the proven foundation for the adaptive enterprise for HP 9000 servers and Integrity servers. » HP UX 11i » HP-UX 11i products Microsoft® Windows® Buy HP servers pre-installed with Microsoft® Windows® Server 2003. » HP and Microsoft NonStop NonStop system software complements the open, parallel architecture of NonStop servers, providing highly reliable, scalable computing within an open systems environment. » NonStop OS » NonStop software Tru64 UNIX® Tru64 UNIX is HP's enterprise operating system for AlphaServer systems. » Tru64 UNIX » Tru64 UNIX products Linux® Linux solutions from HP enable enterprises to maximize their return on IT via open source. » Linux OpenVMS HP OpenVMS features high-availability, scalability, security, industry-leading cluster technology and enhanced flexibility for large-scale SMP systems. » OpenVMS systems » OpenVMS products Other software » MPE/iX transition program and tools » HP and Novell