What is the latest version of Splunk supported on Windows Server 2008 R1?

[rprose]

I am evaluating Syslog server software applications and I would like to evaluate Splunk.
Does Splunk enterprise run on Windows Server 2008 R1?
If so, what version?

thank you!

[FrankVl]

See: https://www.splunk.com/page/previous_releases and for the Universal Forwarder: https://www.splunk.com/page/previous_releases/universalforwarder