get 'pskill' from sysinternals - http://technet.microsoft.com/en-us/sysinternals/bb896683.aspx
deploy that out to your boxes, and then use the same line from your post but w/ 'pskill' and the appropriate options.
on windows 2000 boxes i've seen stuck rscd processes where only a reboot will fix it.
That was actually one of my first thoughts; what I've seen, though, is that the first time you run any of the pstools on a given machine, it pops up some kind of EULA in a Windows GUI box that you have to click "Accept" on before it will continue. I have not tried this via script, but if that holds true then it would be a non-trivial stumbling block in our environment (2,000+ servers... that's a lot of clicking!).
Unless maybe it sets up a registry key or configuration setting somewhere that I could push as well... hm... I'll play around with it a bit. Thanks for the reply, it has given me some new ideas. Will post back if/when I ultimately arrive at a solution. :)
Nice, thanks for providing that. Now I've got something to sink my teeth into.