如何使c＃windows表单应用程序有效期为30天...... [英] how to make c# windows form application valid for 30 days...

问题描述

30天跟踪应用程序代码... 30天后表单应重定向到注册表单...

30 days trail application code... after 30days the form should redirect to register form...

推荐答案

Quote：

您可以执行WMI查询以获取主NIC卡的MAC地址，并将其用作存储在数据库中的唯一标识符。您不需要用户注册，只需在应用程序首次启动时注册，使用NIC地址和到期日期更新数据库。检查每次后续发布的日期，一旦到达该日期，请禁用您的程序。除非他们更换网卡，否则用户将无法卸载/重新安装以绕过您的保护方案。我不会存储任何类似用户名或任何感觉甚至远程个人识别的内容。

You could do a WMI query to get the MAC address of the primary NIC card and use that as your unique identifier that is stored in the database. You wouldn't need the user to register either, just on the appliation's first launch, update your database with the NIC address and the expiration date. Check the date on every subsequent launch and once you reach that date, disable your program. The user wont be able to uninstal/reinstall to get around your protection scheme, unless they change network cards. I wouldn't store anything like usernames or anything that feels even remotely personally identifiable.

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