Hey Mark,
I think you're asking how to switch your MSDN Subscription to a different Windows Live ID. Is this the case? If so, this is easy to do, you can just take your subscription information (first name, last name, email address on the subscription,
and your Subscriber ID).
You also need to create a new Windows Live ID using the email address that you want to use. You can do this by going to https://account.live.com, and on the left side of the screen following the instructions for signing up.
Once you have the Live ID, and you've copied your subscription information down, follow these steps
1) visit http://msdn.microsoft.com/subscriptions/add
2) log in with the new Live ID that you've created
3) enter your subscription information
4) accept the agreement and click OK
5) Click OK at the prompt that tells you the Subscription is already associated to another Live ID
Please note that MSDN Subscriptions cannot be shared with unlicensed users. MSDN Subscriptions are licensed individually and software provided through MSDN can only be used by people who are licensed MSDN Subscribers.
Let me know if you have any other questions, or if I can clarify further.
Thanks,
Mike
MSDN and TechNet Subscriptions Support
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