Simple solution is using dnspy go to activation failed and change
MessageBox.Show("Software activation failed. Invalid license key.", "Error", MessageBoxButtons.OK, MessageBoxIcon.Hand);
to
MessageBox.Show(LicenseManager.GenerateSerialKey(this.userNameTextBox.Text), "Error", MessageBoxButtons.OK, MessageBoxIcon.Hand);
it is just changing to error message "Software activation failed. Invalid license key." to LicenseManager.GenerateSerialKey(this.userNameTextBox.Text) which generates a key for the specified username |
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