Windows 7 machine.
This error just started occurring yesterday to me; the fatal error message box appears with the subject message
1) if I try to start the Adobe Reader application, or
2) try to open *any* PDF.
I've tried the following remedies:
1) Uninstalling Reader XI, reinstalling Reader XI, then restarting the computer.
2) Control Panel-->Programs-->Programs and Features-->rt click Adobe Reader XI-->Change; after it's finished, restart computer.
These had zero effect; what are other suggestions?
When the core library does not work anymore, Acrobat / Reader can no longer run because the components it depends on do not load.
> Enable the hidden Admin Account on Windows 7 ( Ref : http://www.howtogeek.com/howto/windows-vista/enable-the-hidden-adminis trator-account-on-windows-vista/ )
> Disable all Non-Microsoft Startup Services. (Ref : http://helpx.adobe.com/x-productkb/global/disable-startup-items-servic es-windows.html )
> Disable all the Antivirus softwares temporarily from the computer.
This error is known for conflicting Antivirus softwares like CA, Norton,Mc Afee etc.
> Delete the all the contents in the locations mentioned in the doc :
Note: It's possible that your system doesn't contain all of the files and folders listed in this document. If you do not find a listed file or folder on your system, proceed to the next file or folder on the list.
> Reboot the computer and install Adobe Reader 11 and check
Please follow this KB doc: http://helpx.adobe.com/acrobat/kb/reader-core-dll-error.html