Control with TrackCam Vision Feedback and MATLAB

Stripping Down Windows

To make the new computer that runs the control system run as efficiently as possible, all extraneous functionalities were turned off. There is not anti-virus software, no firewall, no https for the internet, and so on. Only the bare minimum is left. Below is a list of the remaining functions and what they do. Another thing to do to make MATLAB run faster is to set it to go to the Task Manager, go to Processes, right-click on MATLAB.exe and set it to Realtime priority.

Explorer.exe

This is the user shell, which we see as the familiar taskbar, desktop, and other user interface features. This process isn't as vital to the running of Windows as you might expect, and can be stopped (and restarted) from Task Manager, usually with no negative side effects on other applications.

nvsvc32.exe

Part of the NVIDIA graphics card drivers (Detonator). It should be left running on any system using Nvidia graphics hardware to ensure proper function.

MATLAB.exe

MATLAB

svchost.exe

an integral part of Windows OS. It cannot be stopped or restarted manually. This process manages 32-bit DLLs and other services. At startup, Svchost.exe checks the services portion of the registry and constructs a list of services that it needs to load. Under normal conditions, multiple instances of Svchost.exe will be running simultaneously. Each Svchost.exe session can contain a grouping of services, so that many services can be run depending on how and where Svchost.exe is started. This allows for better control and debugging.

lsass.exe

the Local Security Authentication Server. It verifies the validity of user logons to your PC or server. Lsass generates the process responsible for authenticating users for the Winlogon service. This is performed by using authentication packages such as the default, Msgina.dll. If authentication is successful, Lsass generates the user's access token, which is used to launch the initial shell. Other processes that the user initiates then inherit this token.

services.exe

This is the Services Control Manager, which is responsible for running, ending, and interacting with system services. Use this program to start services, stop them, or change their default from automatic to manual startup.

winlogon.exe

runs in the background. Winlogon is a part of the Windows Login subsystem, and is necessary for user authorization and Windows XP activation checks.

csrss.exe

This is the user-mode portion of the Win32 subsystem; Win32.sys is the kernel-mode portion. Csrss stands for Client/Server Run-Time Subsystem, and is an essential subsystem that must be running at all times. Csrss is responsible for console windows, creating and/or deleting threads, and implementing some portions of the 16-bit virtual MS-DOS environment.

smss.exe

This is the session manager subsystem, which is responsible for starting the user session. This process is initiated by the main system thread and is responsible for various activities, including launching the Winlogon and Win32 (Csrss.exe) processes, and setting system variables. After it has launched these processes, it waits for either Winlogon or Csrss to end. If this happens normally, the system shuts down; if it happens unexpectedly, Smss.exe causes the system to stop responding (hang).

ctfmon.exe

When you run a Microsoft Office XP program, the file Ctfmon.exe (Ctfmon) runs in the background, even after you quit all Office programs. Ctfmon.exe monitors active windows and provides text input service support for speech recognition, handwriting recognition, keyboard translation, and other alternate user input forms.

rundll32.exe

This program is part of Windows, and is used to run program code in DLL files as if they were within the actual program.

RTHDCPL.EXE

a process belonging to the Realtek HD Audio Control Panel and is bundled alongside Realtek sound cards and audio hardware. This program is a non-essential process, but should not be terminated unless suspected to be causing problems.

ipoint.exe

a process installed alongside a Microsoft IntelliMouse and provides additional configuration options for these devices. "This program is a non-essential process, but should not be terminated unless suspected to be causing problems.

System

a process which shows up on the tasks on mainly Windows XP, Windows 2003 server and later version of Windows. This is a default system counter and cannot be removed.