Found a newer backdoor tip on how to register MORE Live.com passport account. Get it quick before this bug is fixed and also while your easy-to-remember username might still be available! Just tested and registered my own @windows.com account! Yea!
Before you start following the steps below, please use Mozilla Firefox browser. I don’t know why I tried on Internet Explorer 7 and it doesn’t work at all!
1. Click HERE
2. Copy the following javascript code:
3. Paste the code in your address bar (where you usually type in the URL).
4. Hit enter, if all went well it should show a message box telling you “More Live IDs have been added!“.

It adds:
hotmail.com
hotmail.co.uk
msn.com
msdn.com
microsoft.com
microsoft.com.au
zune.net
msngames.com
windows.com
windows2000.com
windowsxp.com
windowsvista.com
windowsmarketplace.com
windowslive.com
xbox.com
xbox360.com
officelive.com
bungie.net
halo2.com
halo3.com
live.(you name it)
CUSTOM.COM – If you discover another domain that you want to use, Just Find “CUSTOM.COM” in the script and change it to “WHATEVER.COM/NET/ORG/COM.AU/CO.UK etc…”
Thanks to mess for this valuable tip!
I registered a custom @windows.com account but Hotmail is not supported for this domain. So you can only get the Live ID. Perhaps at a later time it will be supported.
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