… And the winner is: “CentOS 5”. Since VXI* 4.4 last release our software suite is available in several Linux OS binary packages to get a fast,easy and reliable intalation process. Most of developers and users are selecting CentOS packages (CentOS, Redhat, Mandriva,…). Concerning, 64bit vs 32bit systems adoption represent less than 20% for now but it’s growing fast for new servers CPU/RAM (>4Gb).