For a Windows Forms or WPF application, place it inside the Main method before any licensed control is instantiated:
Renew your subscription and obtain a new license key. 3. Method Has No Effect Cause: Some vendors require also installing a .licx file or registry entry; setlicensekey only supplements, not replaces, design-time licensing. licenseinfo.setlicensekey
else
Ensure the method is called before the first licensed control is created. Verify the key string (no extra spaces, correct encoding). 2. LicenseExpiredException Cause: The license key has passed its expiration date (common for annual subscriptions). For a Windows Forms or WPF application, place