I have noticed a lot of people wanting to know how to get it to work when they right click & choose Send - To mail recipient.
I figured it out.

You need to install an email program.
To be safe I chose to install Opera. ( The Browser -It's free )

This works with programs like Word or Word Pad too.

Here are two WordPad pictures--

STEP 1:

In this picture I opened WordPad and started a document.
It was un-saved.
I clicked on File.
I clicked on Send in email.
See Step 2.

STEP 2:

When I installed Opera I configured it to use my Gmail account.
You can configure it to use your own.

The next 5 pictures show how:

In a few seconds the Opera email will open.
You will see your document attached.
Fill in the To & Subject fields at least.
Write your message and click Send.

The series of pictures below pretty much explain the process I used--

STEP 1:

Open Control Panel.
Navigate to: Set Default Programs
In the menu to the left click on Opera Web browser.
Then click on Choose defaults for this program.
See Step 2.

STEP 2:

In the Set associations for a program scroll all the way down.
Put a check in the MAPI box.
Click Save.
See next series of pictures about sending files.

STEP 1:

For sending files or images or whatever, right click one.
Choose Send to / Mail recipient.
In this case I chose a .png file.
See Step 2.

STEP 2:

The Attach Files window will appear.
Set your picture size from the Drop-down menu.
Click the Attach button.
See Step 3.

STEP 3:

The email program will open with the file attached.
Fill out needed text areas & click Send.

That's it.