vb.net code 39 generator in vb.net Automatic (Delayed Start) Automatic Manual Disabled in VS .NET

Generation Code 128C in VS .NET Automatic (Delayed Start) Automatic Manual Disabled

Automatic (Delayed Start) instructs SCM to start a service after all other services marked with a value of Automatic (and their dependencies). This option was first introduced in Windows Vista. Services set to Automatic start during the Windows boot process, in an order dictated by several registry keys. If any service marked as Automatic depends on other services to be started, those services will be started first (unless marked as Disabled). Services set to Manual are not automatically started during the Windows boot process unless required by other services or applications. Many services set to Manual are started when needed and stop when their required functionality is no longer needed. A service marked as Disabled will not be started by the SCM and cannot be started manually until the service is defined with a different value. The Service Status field shows the service s current operational state. The operational state can be Started, Stopped, or Paused. Paused does not always mean what most users think. It does not stop the service. The service remains active in memory, and may even finish serving active requests, but stops taking additional requests. Services must be specially coded to interact with the SCM and to take the appropriate action, when asked if allowed. For security and reliability reasons, many default Windows services cannot be paused (more than 80 percent) and almost 50 percent of them have permissions that prevent them from being stopped. The Start Parameters field allows additional run-time switches, directives, or commands to be passed to the service during its start-up.

The Log On tab (see Figure 6-5) determines which service account is associated with the service, along with determining desktop interactions and hardware profiles. In the Log On As field you can configure the service to run in the Local System context, or input another service

Part I:

Figure 6-5

account name, including Local Service, Network Service, or another valid service name. The service log-on account must exist in the local SAM database or in Active Directory. If the service account has not been previously assigned the Log-on As A Service right, it will be given it when confirming the selection during configuration. The service account s valid password must be entered here, although if the account is Local System, Local Service, or Network Service it should not have a password entered. Passwords placed here are stored in the registry for future use by the SCM. Note: There is no check here to make sure the password entered in the Log On tab is the correct password. As long as the password is typed in identically twice, the SCM will accept and store it, although the service will fail to start when requested if the password is incorrect. You can also enable the Allow Service To Interact With Desktop option. Some services require this option to work and interact with the user. Desktop interaction is required by the Print Spooler and Interactive Services Detection services. In most cases this option should not be enabled; if enabled, it could present an additional security risk to the interactive end user, the desktop, the service, or the computer. For example, if a service is allowed to interact with the user s desktop, it is easier for the service to be maliciously manipulated by the end user or by malware acting in the end user s security context. The exploited service could more easily infect other users and desktops on the same computer. Restricting services from interacting with user desktops is a recent feature, and many older services are still not fully compliant. You can also enable or disable a service in any existing hardware profiles. This option is most commonly used for docked versus undocked states on laptops. Services that are not needed in a particular hardware profile should be disabled to provide a reduced attack surface area for malicious hackers. (This could also improve performance and save energy, which I am sure was Microsoft s primary intent.)

6: