failure to connect to a DDE server

Hi  Linda

Just try this it's work for me and i hope work for you also...

             Navigating to   HKEY_CLASSES_ROOT\acrobat\shell\open\command  and modify the value of the  Key "Default"

from  "C:\Program Files (x86)\Adobe\Acrobat DC\Acrobat\Acrobat.exe" / u "%1"      to

"C:\Program Files (x86)\Adobe\Acrobat DC\Acrobat\Acrobat.exe" / u "%0"    

Hi lindaparent818,

Please try the solutions given below:-

Solution 1) (This error occurs when you have more than 1 process of Acrobat running)

1) Go to the task manager by pressing Ctrl+Alt+Del

2) Go to the processes in Task Manager

3) End all processes related to Acrobat

4) Launch Acrobat again.

Solution 2) Open Acrobat navigate to Help menu & Repair the installation.

Solution 3) Check the file association on your system.

Solution 4) Navigating to HKEY_CLASSES_ROOT\acrobat\shell\open\ddeexec\application and changing the Key "AcroviewA11"  to  "AcroviewR11.

Let me know if it works.

Regards,

Yatharth