Acrobat Failed to Connect to a DDE Server errors

Hey,

Hope you are doing well and sorry for the trouble.

If you are still experiencing an issue and receive the error " Acrobat failed to connect to a DDE server", please use the troubleshooting steps suggested in the following help document: https://helpx.adobe.com/acrobat/kb/failed-to-connect-to-dde-server.html 

Let us know how it goes.

Thanks,

Meenakshi

fwiw:

• the Adobe Helpx guidance is about the specific case "In Acrobat, combining multiple files into single PDF results in the error 'Acrobat failed to connect to a DDE server'" – what we are facing is not being able to start the program
• I don't see anything in the "Known issues" about "failed to connect to DDE server"

What operating system are you using and what is the latest version update of your Acrobat? See release notes here and compare: 

• https://helpx.adobe.com/acrobat/release-note/release-notes-acrobat-reader.html

Here is some Adobe Helpx guidance: 

• https://helpx.adobe.com/acrobat/kb/failed-to-connect-to-dde-server.html

Also refer to known issues: 

• https://helpx.adobe.com/acrobat/kb/known-issues-acrobat-dc-reader.html