Visual Basic 2008程序保护 [英] Visual basic 2008 Program Protection

问题描述

您好，我使用Visual Basic 2008开发了一个简单的程序.
谁能帮助我制作应用程序的试用版?

示例:

安装后，它可以工作30天
当达到30天时，应用程序会要求您提供一个序列号
重新安装或修改日期后，应用将确定该软件已使用30天并终止

Hi i developed a simple program using visual basic 2008.
Can anyone help me how to make a trial version of a application?

Example:

Once it has been installed it will work for 30days
When it reach 30 days app will ask for a serial key
when it has been re installed or the date has been modified apps will determine that this software has been use for 30 days and will terminate

推荐答案

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