>Since it is a system component, it will always install on the system drive. You might get away with downloading the WI resdist bits from here, hack the Directory table in the MSI with Orca, and install it on d:. I make no guarantees about doing this, however, and haven't tried it myself.

So other than the hack, my only option is to reformat the machines ( and not let the person that set them up touch them anymore :) )?