acrobat reader failed to connect dde server

Это моя проблема: я всегда могу открыть один PDF-документ в Acrobat Reader из Explorer, а иногда и больше (особенно вскоре после перезагрузки Windows). Однако через некоторое время он начинает терпеть неудачу: когда я дважды щелкаю PDF-файл, немедленной реакции нет, и через некоторое время я получаю диалоговое окно с сообщением

Fatal error: Acrobat failed to connect to DDE server

Я могу открывать файлы без проблем: 1) из Explorer после закрытия всех других экземпляров Acrobat Reader; 2) из меню File > Open Acrobat Reader.

Googling показывает много сообщений форума об этой ошибке. Однако большинство из них касается проблем, связанных с сетью; это на моем персональном компьютере. Отключение «Включить защищенный режим при запуске» работает для некоторых людей, но не в моем случае.

Tried to print using Adobe Reader but am getting this message: Fatal Error: Acrobat failed to connect to a DDE Server

How do I fix it?

1 Answer 1

Had a user that had both Adobe Acrobat Standard and Adobe Reader. Turns out they had never actually opened the Reader before. All I had to do was open Reader manually and accept the license terms. Works fine!

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Can Be Caused By Disabled Services

I have encountered a problem viewing PDF files using Adobe Acrobat Reader. For the longest time, PDFs might launch or might not. Sometimes they took about 15 minutes to appear after launching them.

After some Googling I was left without a concrete solution. I do believe there are multiple possible causes for this error, that certainly seems to be the case according to the myriad bits of advice I’ve turned up from the search engines. None of the prescribed solutions helped me out though. I came upon my required solution somewhat by accident.

Recently I saw this error pop up on my screen:

[Fatal Error:] «Acrobat Failed to connect to a DDE server»

I’d not seen this particular error before, but it was the clue I needed. For lack of a better place to showcase the solution I found, I’m writing this article:

Realizing that Acrobat was failing (or timing-out) due to a DDE request, (DDE is Dynamic Data Exchange) I considered why a DDE request might fail. There could be many reasons for DDE failure, which accounts for lack of a good one-size-fits-all solution within the googlespace.

I checked my system to make sure that my DDE services were all running, and they were not.

Specifically, there are 2 relevant services. I had disabled them in an earlier effort to optimize my PC performance.

Under Windows XP Pro SP3, these 2 services are:

The Network DDE service depends upon the Network DDE DSDM service in order to run.
The Network DDE DSDM service has to do with sharing «conversations.» If the Network DDE DSDM service won’t start, then the Network DDE service won’t start. If that happens, it can lead to Acrobat acting flaky.

Once I had these services enabled and started, my Acrobat Reader was able to quickly launch and display PDFs. Since then I have had no problems viewing PDFs.

I realize that Acrobat (at least older versions) can be controlled using DDE, but I do not know why Acrobat should initiate any DDE activity on its own when I try to view a PDF. That is a topic for another article.

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