On Oct 25, 2009, at 3:06 PM, Martin v. Löwis wrote:

(*) it may help if Buildbot would create a Win32 job object, and
then use TerminateJobObject. Contributions are welcome.

Some work has already been done on this, but it needs help.  At the root it's a Twisted issue:

    http://twistedmatrix.com/trac/ticket/2726