Acrobat Pro XI 11.0.3 not recognising email client

Windows 8

Office 2013

Acrobat Pro 11.0.3

Error: "Either there is no default mail client or the current mail client cannot fulfill the messaging request.  Please run MS Outlook and set it as the default mail client etc."

I've confirmed Outlook in default prog', I've tried the various registry hacks and also deleated MSMAPI32.DLL.

This error appeared after updating Office 2013 and Acrobat Pro 11.0.3.

A fix would be appreaciated.

Thank you.