Unable to send document as attachment from Office 2010

On a Windows 7 x64 machine with Office 2010 x64 installed, I had an issue with not being able to send documents via email.

After looking around for a while, I found this thread:
http://social.technet.microsoft.com/Forums/en/outlook/thread/0aefa8d4-a5e5-4295-bea6-6bd48b6d80e6

The fix for me was to:

• Click Start
• Type Default Programs
• Click Set Your Default Programs
• Click Microsoft Outlook
• Click Set this program as default

I can now Save&Send documents as atrtachments.