When opening a temporary file, Powerpoint 2010 usually creates a temporary, hidden file called
~$filename.pptx in the same directory. This is undesirable, since it can cause unnecessary activity with e.g. Dropbox. Furthermore, the "Documents" folder should not be used for temporary files -- we have the
%TEMP% folder for that.
So, is it possible to have Powerpoint create its temporary files in
%TEMP% instead? The following link suggests that it might not be possible: http://support.microsoft.com/kb/211632
Also, why does Microsoft not use the