C# Signature:

    [DllImport("advapi32", CharSet = CharSet.Unicode, SetLastError = true)]
    static extern uint LsaEnumerateAccountsWithUserRight(
    LSA_HANDLE PolicyHandle,
    LSA_UNICODE_STRING[] UserRights,
    out IntPtr EnumerationBuffer,
    out int CountReturned);

VB Signature:

    Declare Function LsaEnumerateAccountsWithUserRight Lib "advapi32.dll" ( _
    ByVal PolicyHandle As IntPtr, _
    ByRef userRights As LSA_UNICODE_STRING, _
    ByRef EnumerationBuffer As IntPtr, _
    ByRef CountReturned As Integer _
    ) As Integer

User-Defined Types:

None.

Alternative Managed API:

Do you know one? Please contribute it!

Notes:

    'NTSTATUS LsaEnumerateAccountsWithUserRight(
    '  LSA_HANDLE PolicyHandle,
    '  PLSA_UNICODE_STRING UserRights,
    '  PVOID* EnumerationBuffer,
    '  PULONG CountReturned
    ');

Tips & Tricks:

Please add some!

VB.Net Sample Code:

    Private WinWorldSid As Integer = 1
    Private POLICY_ALL_ACCESS As Integer = &HF0FFF
    Private SECURITY_MAX_SID_SIZE As Integer = 68
    Private SE_DENY_REMOTE_INTERACTIVE_LOGON_NAME As String = "SeDenyRemoteInteractiveLogonRight"
    Private NT_STATUS_OBJECT_NAME_NOT_FOUND As Integer = &HC0000034
    Private STATUS_NO_MORE_ENTRIES As Integer = &H8000001A

    ' Check to see if the Deny permission already exists
    Public Function CheckTS(ByVal PC As String) As Boolean
    Dim ret, Access, sidsize, count, i As Integer
    Dim SystemName, DenyTSRights As LSA_UNICODE_STRING
    Dim ObjectAttr As LSA_OBJECT_ATTRIBUTES
    Dim Policy, EveryoneSID, EnumBuf, ptr As IntPtr
    Dim LsaInfo As LSA_ENUMERATION_INFORMATION
    Dim ans As Boolean

    ' build a well-known SID for "Everyone"
    sidsize = SECURITY_MAX_SID_SIZE
    EveryoneSID = Marshal.AllocHGlobal(sidsize)
    If CreateWellKnownSid(WinWorldSid, IntPtr.Zero, EveryoneSID, sidsize) = False Then
        ret = Marshal.GetLastWin32Error()
        Throw New Win32Exception(ret)
    End If

    ' setup the parameters for the LsaOpenPolicy API
    ObjectAttr.Length = Marshal.SizeOf(ObjectAttr)
    SystemName.Length = PC.Length * UnicodeEncoding.CharSize
    SystemName.MaximumLength = (PC.Length + 1) * UnicodeEncoding.CharSize
    SystemName.Buffer = Marshal.StringToHGlobalUni(PC)
    Access = POLICY_ALL_ACCESS

    ' open a policy handle on the remote PC
    ret = LsaOpenPolicy(SystemName, ObjectAttr, Access, Policy)
    If ret <> 0 Then
        Throw New Win32Exception(LsaNtStatusToWinError(ret))
    End If

    ' clean up
    Marshal.FreeHGlobal(SystemName.Buffer)

    ' Setup the input parameters for the LsaEnumerateAccountsWithUserRight API
    DenyTSRights.Length = SE_DENY_REMOTE_INTERACTIVE_LOGON_NAME.Length * UnicodeEncoding.CharSize
    DenyTSRights.MaximumLength = (SE_DENY_REMOTE_INTERACTIVE_LOGON_NAME.Length + 1) * UnicodeEncoding.CharSize
    DenyTSRights.Buffer = Marshal.StringToHGlobalUni(SE_DENY_REMOTE_INTERACTIVE_LOGON_NAME)

    ' do it!
    ret = LsaEnumerateAccountsWithUserRight(Policy, DenyTSRights, EnumBuf, count)
    If ret <> 0 Then
        Marshal.FreeHGlobal(DenyTSRights.Buffer)
        LsaClose(Policy)
        ' if there are no matching entries
        If ret = STATUS_NO_MORE_ENTRIES Then
        Return False
        End If
        Throw New Win32Exception(LsaNtStatusToWinError(ret))
    End If

    ' check to see if the Everyone SID is currently in the list
    ans = False
    For i = 0 To count - 1
        ptr = New IntPtr(EnumBuf.ToInt32 + (i * Marshal.SizeOf(LsaInfo)))
        LsaInfo = CType(Marshal.PtrToStructure(ptr, GetType(LSA_ENUMERATION_INFORMATION)), LSA_ENUMERATION_INFORMATION)
        If EqualSid(LsaInfo.Sid, EveryoneSID) Then
        ans = True
        Exit For
        End If
    Next

    ' clean up
    LsaFreeMemory(EnumBuf)
    Marshal.FreeHGlobal(DenyTSRights.Buffer)
    LsaClose(Policy)

    Return ans
    End Function

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