It would appear that at least some of the stuff can be turned off, but msconfig is not the best place to do it. The best place to disable services is from Services.msc : Run >>>services.msc.
Here is a great site that explain what the different MS services do. As far as which one is causing problems, ummmm, welll, uuuuu, I don't know, but I would suggest switching to Mozilla Thunderbird.