Huw Davies (@huw) commented about include/netioapi.h:
LARGE_INTEGER CreationTimeStamp;
} MIB_UNICASTIPADDRESS_ROW, *PMIB_UNICASTIPADDRESS_ROW;
+typedef struct _MIB_ANYCASTIPADDRESS_ROW {
Please move the opening brace to the next line.
Additionally, let's move this below the unicast table definition below.
Further, please add the function prototype (with the others, near the end).