Sysinternals Suite - большой набор полезных системных утилит от Марка Руссиновича. Включает в себя:
AccessChk
AccessEnum
AdExplorer
AdRestore
Autologon
Autoruns
BgInfo
CacheSet
ClockRes
Contig
Ctrl2Cap
DebugView
DiskExt
DiskMon
DiskView
Disk Usage (DU)
Disk2vhd
EFSDump
FileMon
Handle
Hex2dec
Junction
LDMDump
ListDLLs
LiveKd
LoadOrder
LogonSessions
NewSid
NTFSInfo
PageDefrag
PendMoves
PortMon
ProcessExplorer
Process Monitor
ProcFeatures
PsExec
PsFile
PsGetSid
PsInfo
PsKill
PsList
PsLoggedOn
PsLogList
PsPasswd
PsService
PsShutdown
PsSuspend
RegDelNull
RegJump
RegMon
RootkitRevealer
SDelete
ShareEnum
ShellRunas
SigCheck
Streams
Strings
Sync
TCPView
VolumeID
WhoIs
WinObj
ZoomIt.