Host sFlow on older Windows servers

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http://serverfault.com – Is it possible to install Host sFlow to Windows Server 2000 and Windows server 2003? I've setup Ganglia on one host to monitor a (mostly Windows) environment and while sFlow works on Win 2k8 machines, it does not on my legacy servers. I just can't get the installation to do anything - when I start the installation, it immediately tells me that the process has prematurely ended. Note: If sFlow can't work there, I'll accept an answer that suggests similar monitoring thingy that is willing to send data to Ganglia. (HowTos)