Fatal Error: Failed to connect to DDE server

I've read the other posts about this problem, but none seem to fit my situation.
This happened while trying to use a 3rd party program Typhoon AutoRun to test autorun files for CDs of our Ebooks that we're burning. Each of these Ebook CD projects has 6 PDF files to open; 1 Mobipocket, 1 HTML. Of course, the only problem occurs with the PDF files.
Let me start by saying that I was using Acrobat 6 until September, when we upgraded to CS 4, and never experienced this issue.
And after installing Acrobat Pro 9, I hadn't any difficulty until TODAY.
Order of events: I opened a past completed project in Typhoon Autorun to test the file before burning to CD.
When I clicked on one of the PDF document buttons, the first thing that happened was Adobe Active X 9 attempted to run. BUT the Active X failed to install on the first attempt:
"Error 1904.Module
C:|WINDOWS\system32\Macromed\Flash\Flash9f.ocx failed to register. HRESULT -2147220473. Contact your support personnel."
The Typhoon Autorun program continued operating and opened the project's PDF documents without any difficulty -- all 6 opened, one after the other, when I clicked on their buttons.
I closed out the error message, closed out the Typhoon Autorun project I was testing to work on another Typhoon Autorun project. When I had that one finished, I tested it as I had the one previous.
This time when I clicked on a button to open one of the PDF button, the Adobe Active X 9 program loaded and INSTALLED successfully.
THEN, the PDF document opened. But when I attempted to open any of the other 5, they did nothing. I double-checked my Typhoon Autorun project files, but all of the settings were correct. I tried testing my project again. This time NONE of the PDF files would open.
I closed the Typhoon Autorun program and attempted to open Acrobat Pro 9 immediately after. I tried clicking on the shortcut button several times with no result. After several minutes, literally, I received the "Fatal Error: Failed to connect to DDE server" --- actually, several instances of that message to correspond with all the times I'd attempted to open the program.
I shut down my computer, rebooted, reopend Typhoon Autorun and tried to test a different project.
Again, Adobe Active X 9 installed. (If it's already installed why is it reinsalling???)
And again, only 1 PDF file would open. Then none of the others. I shut down Typhoon Autorun and tried to open Adobe Acrobat again, and it wouldn't open.
The problem seems to be appearing when Adobe Active X 9 installs, and it's doing that automatically, without asking.
I never had this problem when I used Adobe Acrobat 6 (I'm really beginning to regret upgrading)
I never had this problem before this Active X 9 started installing.
Sandra Dugas

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