OS X 10.6.2
Windows 7 Ultimate x64
Here's what the command line spits out:
MacFan Version .65 Build 11.3.2009.4
Checking running processes for conflicting programs...
Number of fans in the system: 3
Reading fan data...
Unable to read key F0Mn from SMC.
If the problem persists, contact developer at sourceforge.net/macfan for help.
Unexpected error: SMC value could not be read