Acrobat failed to connect to DDE Server - Can't open

[jlentfer]

I've tried to open Adobe and get the following error message after about 5 min or so:

Acrobat failed to connect to a DDE server.

I am unable to open files.

I read the other posts on this and tried the open with and it didn't work -

Any idea's on how to resolve? 

[pwillener]

See if there is anything in this topic that helps: http://forums.adobe.com/message/1877300#1877300

[Marc Ross · Accepted solution]

Just fixed this myselk. Please see http://forums.adobe.com/thread/1029593. Works well as you deactivate and then reboot and reactivate your product, simple as. Hope this helps