I had to reformat my harddrive and am trying to get everything operational again.  I am trying to find a copy of Autodesk's DWF writer.  I found the 32-bit installer, but it will not work on my 64-bit machine.  All of the links I can find for the 64-bit version link to Autodesks online viewer instead of to a download for the writer.  Does anyone have a copy of this file you can share with me?