Licensing for this product has stopped working in Arobat

I have had Acrobat 9 Pro installed for a few years.  Recently, it stopped working.  I uninstalled and reinstalled it and now I have the error message: "Licensing for this product has stopped working" followed by a code 148:3

I think that my computer has tried to validate the serial number and the Adobe server that handles the authorization requests doesn't recognize the s/n any more.  This is understandable because this version is old.   I did a community search and the only thing I found was a problem with dream weaver.

Does anyone have a workaround for this?  I don't use Acrobat much any more and buying a new version isn't worth the trouble.  But I do use it and would like to keep it running.

TIA for any advice. I put the topic General Troubleshooting down, but I'm not sure if this applies, but it's the topic that makes the most sense to me.

Paul