Custom Button > E-mail. Hyperlink and text formatting question.

Hello everyone,
I'm creating a custom command button in my excel spreadsheet to open a new mail message window with recipients and a body of text.
I have a couple of questions though. Could you help me answer them? I've been searching tirelessly on the internet and can't seem to find an answer

1. Instead of an attachment action line, e.g. .Attachments.Add ActiveWorkbook.FullName,(which only attaches the document to your e-mail) can I attach a hyperlink of the actual current document? I assume it'd have to be saved on the harddrive obviously.
2. I noticed when I click on my command button, the e-mail is in plain text. Is there a way I can change the font and size of the text in the body of the e-mail?

Here is the code I am currently using:

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Thank you everyone for taking the time to read this post.
I've learned a lot reading through many of the posted discussions (but I haven't figured this out yet ;p )

Thank you for your response.

If you attach a hyperlink then the file would need to be saved on the net or a server that everyone receiving the mail has access to.

This is the case. The file is saved on a network everyone is connected to.

To include a hyperlink though, you just need to write the link in the Body

Can this somehow be added automatically using VBA?

Thank you!