Network
NetAPI32
NetGetJoinInformation: Join Information for a Local or Remote Machine
NetWkstaUserEnum: all logged-on users
NetUserGetInfo/NetUserSetInfo: toggle enable/disable user
WTSAPI32
WTSQuerySessionInformation: Logged on User on Remote Session
DNSAPI
DNSQuery: dns query utility
IPHLPAPI
GetNetworkParams: get current dns server
NotifyAddrChange: IP Adress Table change detect
