I have the SMP client running OK on my WS2003 machine, install.bat was OK too. I don't recall that it needed boot when running install.bat on it. But you will need to run install.bat only once so that smpd.exe and mpiexec.exe are installed as process then you can fold away.
@Dee, lol 48C on 100% load is COOL.
Added: Marcus, maybe you need to pass the
firewall? Or did you install .NET 2.0?