usefull commands
http://www.robvanderwoude.com/ntadmincommands.php#Cmd18
NET : http://www.robvanderwoude.com/net.php
DSTOOLS : http://technet.microsoft.com/en-us/library/cc778084(WS.10).aspx
NETSH : http://www.microsoft.com/resources/documentation/windows/xp/all/proddocs/en-us/netsh.mspx?mfr=true
NETDOM : http://technet.microsoft.com/en-us/library/cc737599(WS.10).aspx
SHOWACLS /U:domain\userid
NET VIEW /DOMAIN
NETDOM QUERY /D:MyDomain DC
NETDOM QUERY /D:MyDomain PDC
NETDOM QUERY /D:MyDomain FSMO
NETDOM QUERY /D:MyDomain SERVER
NETDOM QUERY /D:MyDomain WORKSTATION
NETDOM /DOMAIN:MyDomain MEMBER \\computer2Bdeleted /DELETE
NET USER loginname /DOMAIN | FIND /I "Account active"
NET USER loginname /DOMAIN | FIND /I "Password last set"