In hindsight I should have thought of it, but even if I had, others got there first.
You may remember my problems with IPMI on our X2100 servers from an earlier posting. Today I had cause to revisit the matter, as we’re having terrible issues with the Nvidia RAID on one of our servers.
The lack of a Windows version of IPMItool is still a pain, but I am leagues closer to a usable solution now, thanks to Cygwin. The solution, it turns out, whilst somewhat laborious, is fairly straightforward. Simply build IPMItool under cygwin. Result!
I can now query the SMDC board on my X2100s from Windows.