Hi @Hideo Yamada , Welcome to Microsoft Q&A,
Microsoft.Windows.SDK.NET.dll belongs to Microsoft and is continuously updated. You may not redistribute it.
You may use this library in your own development environment, provided that you comply with the relevant license terms.
If you plan to distribute this library as part of your application, you must ensure that you have the legal right to do so.
Best Regards,
Jiale
If the answer is the right solution, please click "Accept Answer" and kindly upvote it. If you have extra questions about this answer, please click "Comment".
Note: Please follow the steps in our documentation to enable e-mail notifications if you want to receive the related email notification for this thread.