MSDN Managed Newsgroups might be one of Microsoft's best kept secrets for development resources.  If you have an MSDN subscription you can post a development question on the Managed Newsgroups and a Microsoft support person will answer it within 24 hours.  For me this is an invaluable resource -- much easier then calling on the phone.  You can also post as many times as you like.  There are a few hoops to jump through to tie your MSDN subscription to your passport login, which take about 10-15 minutes to figure out.  If you don't have a MSDN subscription getting help is hit and miss - Sometimes you get a response and sometimes it is correct.

Too bad all their products are not supported this way.

http://msdn2.microsoft.com/en-us/subscriptions/aa974230.aspx

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