VMWare Fusion high CPU usage hint

Whether iTunes or VMWare Fusion v1.0 is the culprit, I’m not sure. I’ve been getting high CPU usage while my guest OS is idle in VMWare Fusion 1.0 final.
The solution, noted elsewhere, is to disable ituneshelper.exe using autoruns or msconfig.exe. vmware-vmx CPU usage with an idle guest OS went from 38% to 8%