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    • 7. 发明授权
    • Method and apparatus for protecting software executing on a
demonstration computer
    • 用于保护在演示计算机上执行的软件的方法和装置
    • US5557732A
    • 1996-09-17
    • US289150
    • 1994-08-11
    • Suzanne M. Thompson
    • Suzanne M. Thompson
    • G06F1/00G06F21/00G06F3/14
    • G06F21/53
    • Demonstration (demo) application software and various utility software programs are configured as a novel "protected demonstration environment" having layered security mechanisms for protecting the integrity of software executing on a computer. The security mechanisms include an underlying activity timer for ensuring that the demo program is periodically running in the absence of user input activity. When the demo program is not running, additional security mechanisms, such as message filters and icon disablers, are provided to reduce the vulnerability of the system. These security mechanisms cooperate to provide users access to certain innocuous features of the software through a graphical desktop interface on a computer screen, while preventing access to potentially destructive features.
    • 示范(演示)应用软件和各种实用软件程序被配置为具有分层安全机制的新颖的“受保护的演示环境”,用于保护在计算机上执行的软件的完整性。 安全机制包括底层活动计时器,用于确保演示程序在没有用户输入活动的情况下定期运行。 当演示程序未运行时,会提供其他安全机制,例如消息过滤器和图标禁用程序,以减少系统的脆弱性。 这些安全机制合作,使用户能够通过计算机屏幕上的图形桌面界面来访问软件的某些无害特征,同时防止访问潜在的破坏性特征。