Using hotmail address to be default in IE

[stufffromrob]

I have IE 11 with Win 8.1 on my lovely shiny new pc. I use Hotmail accessed via the web, I don't use the mail settings in Win 8.1. How can I set things up so that my messages sent from web sites etc (eg Picassa) use my Hotmail address. Do I just install outlook and assign the Hotmail address on it somehow? How is that done? Or is there a simpler way. I know all about Hotmail being a web based system and outlook being a program. But I don't see how it all fits together.

Thanks !