Permission denied.
An attempt was made to access a socket in a way forbidden by its access permissions. An example is using a broadcast address for
sendto without broadcast permission being set using
setsockopt(SO_BROADCAST).
Another possible reason for the WSAEACCES error is that when the
bind function is called (on Windows NT 4 SP4 or later), another application, service, or kernel mode driver is bound to the same address with exclusive access. Such exclusive access is a new feature of Windows NT 4 SP4 and later, and is implemented by using the
SO_EXCLUSIVEADDRUSE option.
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