Microsoft Affiliate System is rolling out to public as I was just approved from their system upon receiving an email about the approval. There is actually only three available product that is accepted but still should be located in either Canada or US.

Here is an excerpt of the mail I have received.

The Microsoft Affiliate Network is proud to welcome you as an approved member. You now have access to the network where you can find available offers to promote.

Here is the three that is available for you to try
1.Windows Live OneCare
2.Windows Live Toolbar
3.Microsoft adCenter.

On Microsoft adcenter, here is additional coupon offering.

Help your customers drive their business by providing them with their coupon for a $75 Microsoft adCenter credit.

So if you are from Canada or US or for my visitors from US or canada, why not try those out.