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Is there any tool (or maybe registry configuration, whatever) that turns a Windows XP machine into a multicast ntp server? I am looking for a freeware solution preferable.

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Install Linux on it? Why would you want a Windows XP box as a NTP server? – Zoredache Feb 15 '11 at 19:29
@Zoredache: that is for my work. We have four "operating units" here with one win xp machine each. There is a GPS clock available, but it has to be forwarded by the xp machine since it can not be reached by all members of the network. Unfortunately there is nothing I can change (operating system, protocol, ...) – tanascius Feb 15 '11 at 19:39
up vote 2 down vote accepted

The Meinberg port of NTPd is version 4.2.4p8 which is supposed to support Manycast. I have not actually used it (the Windows port for manycast) so I can not attest it it's functionality. I know the 4.2.4p5 version I use on *nix does support it.

An additional bonus to this route, it uses the exact same configuration file as the *nix version (same software, you'd expect as much). Also the ntpq and ntpdc utilities are included for diagnostics and testing.

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Great, that's exactly what I was looking for! Thx – tanascius Feb 16 '11 at 13:54

Hi I hope this helps you.

It is however not free but a small cost:

I do not know of any free versions that do multicast.

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