This is a fairly easy tutorial that consist of few steps.

Alright, so go ahead and head over to Passport.net.
Once there find where it says
Use an email address you already have
You can use any existing email address from any email provider when you create your credentials for Windows Live ID. Then you can use those credentials to sign in to any Windows Live ID site.

To access email at Sign In, you must use an MSN or Hotmail email address, or an address associated with an MSN Personal Address.
Get started now
Follow that link.

From there on I think it is pretty self explanatory.


The only down side to this is the fact that you are unable to change the name for the MSN Client, and that you can't access the inbox.


But the up sides are nice. You can pose as a secret admin, admin, hacker, whatever you can thing of.
I know someone who used this method with admin@gaiaonline.com and scored an account with the worth of 40 million through social engineering. You just need a good plan for this trk. But this can also be used simply to have a kickass domain instead of live, or hotmail. Anyways, hope this is helpful to you guys at all.