Severely, when you encounter the error on the screen of the computer then, it can show the prompt Acrobat Failed to Connect to DDE Server. In whichsoever, doesn't mean any virus on pc or system. While this luminaries platform, whereas, is invented by the third-party substitution data among server and window for reading, writing operations, and more. In this case, most probably can happen with the acrobat reader properly not installed, and in another option, these files already damage and disable the antivirus. While in these circumstances, Digi Knowlogy 

shares with you some steps, which you can use securely on this platform and much more.