Reference thread "PowerDirector 9 - AVI Profile Settings - Compression codec (No Compressor)" for the info that steered me toward this "solution".
I have been having 64 bit PD9 problems with many different ways of failing. I have found some relatively 'safe' ways to edit/render but I have wondered if the 32 bit version might help although I installed from the downloaded install version rather than from a DVD.
With MrBalloon's information, I did get a 32 bit version installed - here's how I did it. When the installer asked for the language to use, I looked in my 'temp' directory, searching for recently created directories. There was a directory named pftD2EF.tmp and in it was a directory named 'x64'. I deleted the x64 directory then answered the Language to use popup. Once the install finished I ended up with a 32bit install of PD9 (9.0.0.2316) in my Windows 7 Ultimate 64bit system.
After activating, I ran the 2504 update and now had 32-bit 9.0.0.2504.
Finally, I ran the 2930 update and I now have 32-bit PowerDirector Ultra64 version 9.0.0.2930.
I haven't done much testing yet but I now have a DivX option for AVI files.
Perhaps this might be an option for those who are having problems with a 64bit PD install, no promises but this might help. Keep in mind the name of the directory in Temp will probably change but will probably look similar to the name I found.
Thank you MrBalloon for your info.
Gary