Get a way out to fix 'Error in registry for extension' exchange server error

There are various situations where you might encounter problems while working in Outlook 2007 working with Exchange server especially at startup which can be due to database corruption issues or registry errors like error in registry for extension exchange extensions outlook 2007 etc and then depending upon the error causes you need to go for its corresponding solution including exchange repair software.

Here assume a practical scenarion demonstrating the above example where while starting Outlook 2007 or while opening or closing of Add-in manager dialog box in Outlook, you receive the following error message on screen:

Microsoft Office Outlook
Error in registry for extension "Exchange Extensions;?"
The syntax or format of the registry entry is incorrect. Check the registry settings and compare the registry for this extension to other extensions in the registry

The situations when the above encountered error message can occur is when you send an e-mail by going to the object to be sent-> right click and Send To and then click on the Mail Recipient option. Then after wait for at least 24 hours and send next email message but during this, you may notice that there is corruption issues Exchange Extensions string value in the registry.

Solution:

In the situations when you get Error in registry for extension exchange server error then inbuilt commands does not serve to be useful one and instead of, you need to follow the below steps: First of all close Outlook 2007 application and then Go to Start->Run and type regedit to open Windows registry editor. There search for the following registry key:

HKEY_LOCAL_MACHINE\Software\Microsoft\Exchange\Client\Extensions

Right click this registry key to select Delete and confirm the deletion of Exchange extensions string value by clicking on Yes and then quit registry editor. But in case if it does not help you then go for exchange database repair with the help of edb repair tool. It is helpful in almost every kind of situations either Exchange database checksum errors or Dirty Shutdown error etc and thus served as the complete solution regarding exchange database related issues.