Error when trying to open Recovery Manager for Exchange:  "Either there is no default mail cli (4313175)

 When trying to open Recovery Manager for Exchange, you may get the following error:

"Either there is no default mail client or the current mail client cannot fulfill the messaging request" error message when you send e-mail from third-party program in Outlook.  After this error you will not be able to open the application.

The reason for this error is typically due to the Outlook registry being corrupt. Reinstalling Outlook will not fix the issue

For Outlook 2010 or 2013 make sure you are using the 32 bit version.

If you are on the 32 bit version try the following steps.

To resolve the Registry corruption in Outlook please do the following:

1.Click Start, and then click Run.
2. In the Open box, type regedit, and then press ENTER.
3. In Registry Editor, locate the following subkey in the registry:

For 32 bit Windows XP, Vista and Windows 7 machines find and delete the following subkey: 
HKEY_LOCAL_MACHINE\SOFTWARE\Clients\Mail\Microsoft Outlook

For 64 bit machines,locate and remove the following subkey:
HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Clients\Mail\Microsoft Outlook

4. Select the subkey, and then press DELETE
5. Click Yes.
6. Quit Registry Editor.
7. Start Outlook.

a. For Outlook 2000 and Outlook 2002, click the Help menu, and then click Detect and Repair.

b. For Outlook 2007, click the Help menu, and then click Office Diagnostics.

c. For Office 2010, Click Start, click Control Panel, click Programs and Features, select Microsoft Office 2010 and then click the Change button. Next, click Repair, and then click Continue. 

8. Follow the instructions on the screen to complete the repair.

For more information please check out Microsoft's link for reference at http://support.microsoft.com/kb/813745

Outlook 2010 Users.

If this does not resolve the error then here are some alternative fixes that should resolve the issue:

1. Manually set Outlook 2010 as the default mail client, via Start > Control Panel > Set Program Access and Defaults (Start > Default Programs in Vista and 7) and follow the on-screen instructions to set Outlook as the default.

2. Manually delete the MSMAPI32.DLL file located in C:\Program Files\Common Files\System\MSMAPI\1033.  This file will be recreated when Outlook completes its next launch.  It should then ask you to set the application for the default.