sony vaio fan control driver

After installing Vista, my system's fan ran at a very high speed. I had a
similar problem in XP that I fixed by installing the sony fan control driver
(xSOG061XDAN.EXE) from the sony web site.

I tried running that installation on Vista, but it just hung. I then had
the idea of running it on XP to see what it did. I saw that it copied 3
files (SFCINST.EXE, SonyFanC.inf and sonyfanc.sys) to a temp directory during
the installation, then deleted them.

I ran the installation again, but killed the process as soon as the 3 files
were copied. Then I ran SFCINST.EXE, and that ran to completion. After I
rebooted, the fan slowed down to normal. Voila!