Formal. The Cloud Window License App is an industrial and commercial registration software officially launched by the Hebei Provincial Administration for Industry and Commerce. As long as individual industrial and commercial households download it, they can realize the entire electronic registration process for individual industrial and commercial households. Yunchuang Licensing is a national administrative approval service platform that can handle various administrative approval matters through the Internet. In Henan, cloud window applications can also be used. The Henan Provincial Government and municipal and county governments have actively promoted cloud window applications and provided convenient and fast services. How to handle the failure to obtain the signature attachment information of the Cloud Window Certificate: Try to log out and log in again, and try to obtain the information again. If you still cannot obtain it, try to contact customer service at the local Cloud Window Network office, and customer service will help solve the problem.