![]() ![]() Screen savers contain specific exported functions, resource definitions, and variable declarations. Windows Vista and later: If password protection is enabled by policy, the screen saver is started regardless of what an application does with the SC_SCREENSAVE notification. The security context determines the level of privileged operations which can be done from a screen saver. Windows 2003 - screen saver runs in the context of LocalService with all privileges removed and administrators group disabled.Windows XP and Windows 2000 - screen saver runs in the context of LocalSystem with accounts restricted.If no user is logged on, the security context of the screen saver is dependent on the version of Windows being used. If a user is interactively logged on when the screen saver is invoked, the screen saver runs in the security context of the interactive user. ![]() The security context of the screen saver is dependent on whether a user is interactively logged on.
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