谁能告诉我这个账户都是什么东西?

[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\SpecialAccounts\UserList]
"HelpAssistant"=dword:00000000
"TsInternetUser"=dword:00000000
"SQLAgentCmdExec"=dword:00000000
"NetShowServices"=dword:00000000
"IWAM_"=dword:00010000
"IUSR_"=dword:00010000
"VUSR_"=dword:00010000


用户系统信息:Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1; .NET CLR 2.0.50727)