Quote - Try setting the TEMP environment variable to the directory you want to use.

Arrrgh.  I don't know why I forgot about Windows's TEMP variable.  Thank you.

Though actually, I ended up doing it a different way: I configured the disk in question to mount right on my "Local SettingsTempQueue Manager" directory rather than having a drive letter.

Having a disk dedicated to doing nothing but Queue Manager temporary files has really sped up the renders I'm doing at the moment.  But I can imagine renders where it would help very little at all.

-- markok