Error messages appear in the particular application when this works somewhat diverted from what it is expected for. The reason for the same may vary from external (like viruses) to internal (application malfunction) factors. Such error message are also seen in MS Outlook while attempting to start it, like for example

“Error in configuration file “C:\Program Files\Microsoft Office 97\Office\Addins\filename.ecf”

Or

“The extension configuration file “C:\Program Files\Microsoft Office 97\Office\Addins\filename.ecf” could not be installed. There is an error in the syntax or format of the file.”

Or

“Unable to load filename.dll. You may be out of memory, out of system resources, or missing a .dll file.”

This results in the failure to open the application.

Cause

The statement of the error message itself suggests the reason for the same. This is the ECF (Extended Configuration File) which is causing the problem. The damage of this relevant file might be causing this problem. This file is associated with MS Outlook Add-in and the damage of it can create several problems. Another problem can be associated with some DLL or Extend.dat file.

Solution

For handling the present situation, the damaged extensions are needed to be replaced. Another solution can be removing their reference from the Windows registry, but this could prove as the threat for your PST file and may corrupt it.

The geek user in these terms should go for this. For removing the reference of damaged extension, you need to locate the following registry:

HKEY_LOCAL_MACHINE\Software\Microsoft\Exchange\Client\Extensions

After this, you need to delete the defected add-in. If this also doesn’t solve the problem then you need to rename and recreate the Extend.dat file. These solutions are only fruitful if are done properly or any damage has not incurred to your PST file.

However if PST corruption is observed then you need to repair it i.e. need to have PST recovery tool. These tools are specifically termed as PST repair software which make the scan of the affected PST. All you need is to just give the path of the corrupted file and within few clicks, you will observe PST repair. This is possible due to the interactive user interface of the software which comes equipped with.

Stellar Phoenix Outlook PST Recovery software proves to be the most trustworthy and efficient repair Outlook PST utility in this regards. The software targets each corruption problem and ends up at the complete PST recovery.

Usable with MS Outlook 98, 2000, 2002, 2003 and 2007, this repair Outlook PST software creates the unique profile for individual PST. The software can also repair the encrypted and password protected files.