Remote Web Access with SBS 2011 Standard - Dynamic DNS Problem

Put simply, you don't. The dynamic DNS client uses APIs that have been exposed and that Microsoft has negotiated a deal with.

So when you said this "I already have a domain name and my provider is not one of the two for automatic setup" ...since you aren't with a provider that supports the dynamic DNS client, you have no reason for the service to be running. Even if you *got* it running, it wouldn't know who to notify that your IP address has changed, it wouldn't know *how* to notify them, and even if you overcame all of that, your provider wouldn't understand the message being received.  It'd be like someone answering this question in French if you don't speak French.

If your provider supports dynamic DNS updates then they should provide a dynamic DNS client of their own. You will have to install and use that. Or you can transfer your domain name to one of the supported registrars and rerun the setup wizard so it can configure the built-in ddns client and point it to the right registrar.

-Cliff

OK - I think I understand - it is the provider that controls the dynamic dns.  I have a dns2go address (not the same as my domain name) that I have used in conjunction with VNC to remote into computers.  If I understand you, I should be able to setup the appropriate DNS records (A and MX if I remember correctly) with dns2go and then it should all work.