实现效果:

知识运用:
RegistryKey类的DeleteValue方法
实现代码:
private void button1_Click(object sender, EventArgs e)
{
RegistryKey mreg;
mreg = Registry.ClassesRoot;
mreg = mreg.CreateSubKey("piffile");
mreg.DeleteValue("IsShortcut");
mreg.Close();
RegistryKey mreg2;
mreg2 = Registry.ClassesRoot;
mreg2 = mreg2.CreateSubKey("lnkfile");
mreg2.DeleteValue("IsShortcut");
mreg2.Close();
RefreshSystem();
MessageBox.Show("去除完毕!!");
}
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