In this post, you’ll learn more about the Windows Socket Error WSA_IO_PENDING
997 returned by the WSAGetLastError function in Windows as well a quick description about the error
Windows Socket Error Code
WSA_IO_PENDING
997
Windows Socket Error Description
Overlapped operations will complete later.
The application has initiated an overlapped operation that cannot be completed immediately. A completion indication will be given later when the operation has been completed.