We have often recommended to minimize the number of other programs and processes that are running during a DirectRT session. Understandably, many users ask how to do that. Unfortunately, it is not as simple as checking the startup folder in the Windows Start menu. If you have a bunch of little icons in the bottom right of your Windows task bar, then you have stuff running that could be problematic and competing for resources. Other programs give you no notice at all that they are running. Further, many of these programs and processes may run because they have startup commands that can only be found in the Windows registry. What's a researcher to do!