Adobe acrobat failed to connect to a dde server

Another method to resolve Acrobat failed to connect to a DDE server error. Follow these steps to accomplish this process. Sometimes while accessing a document through Adobe Acrobat, your system protection services like Antivirus might flag the file, and you receive the Acrobat failed to connect to a DDE server error.

Try disabling your Antivirus temporarily and then open the file to see if this solves your problem. Note: Be careful while opening the file after disabling the Antivirus and make sure to enable it again after accessing your file. Problems arise during the installation may be the reason Adobe Acrobat shows Acrobat failed to connect to a DDE server error message. To fix this issue, repair Acrobat by following these steps:. Those were some of the advanced methods that you can implement to solve Acrobat failed to connect to a DDE server issue.

Take a backup: Right-click the Application key and then click Export. In the Export Registry File dialog box, enter a file name and click Save.

Change the value of the key from AcroViewA20 to AcroViewR20 where the last two digits or numbers depend on the Acrobat version installed on your computer; For example, for Acrobat , it will be 20 :. Close the Registry Editor by clicking the Close icon X at the upper-right corner of the dialog box.

Check whether an Anti-virus program is installed on the machine. Legal Notices Online Privacy Policy. Error: A running instance of Acrobat has caused an error Search. A running instance of Acrobat has caused an error.

In Acrobat, trying to use a tool or feature results in the following error:. To resolve the problem, try the following solutions in the order they appear below.

If the issue still persists I would suggest you to post your query in adobe acrobat forum. Please visit the link below to find a community that will offer the support you request:. You can get back to us if you have any difficulties in doing the same. We are always here to help you. Was this reply helpful? Yes No. Sorry this didn't help. Thanks for your feedback. This thread is locked. You can follow the question or vote as helpful, but you cannot reply to this thread.

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