The following setsockopt() command fails with error 10022 ( invalid option) using CE 5.0, but works fine on my desktop (XP). sockDesc was checked for validity. void UDPSocket::disableCheckSum() { BOOL bOptVal = TRUE; int bOptLen = sizeof(BOOL); int err; int ret; ret = setsockopt(sockDesc, IPPROTO_UDP, UDP_NOCHECKSUM,(char *)&bOptVal,bOptLen); cout << "ret = " << ret << endl; err = ...


