'Create a form with a command button (command1), a list box (list1) 
 'and four text boxes (text1, text2, text3 and text4). 
 'Type in the first textbox a startingpath like c:\ 
 'and in the second textbox you put a pattern like *.* or *.txt 

Private Declare Function FindFirstFile Lib "kernel32" Alias "FindFirstFileA" (ByVal lpFileName As String, lpFindFileData As WIN32_FIND_DATA) As Long
Private Declare Function FindNextFile Lib "kernel32" Alias "FindNextFileA" (ByVal hFindFile As Long, lpFindFileData As WIN32_FIND_DATA) As Long
Private Declare Function GetFileAttributes Lib "kernel32" Alias "GetFileAttributesA" (ByVal lpFileName As String) As Long
Private Declare Function FindClose Lib "kernel32" (ByVal hFindFile As Long) As Long

Const MAX_PATH =  260 
Const MAXDWORD = &HFFFF
Const INVALID_HANDLE_VALUE = - 1 
Const FILE_ATTRIBUTE_ARCHIVE = &H20
Const FILE_ATTRIBUTE_DIRECTORY = &H10
Const FILE_ATTRIBUTE_HIDDEN = &H2
Const FILE_ATTRIBUTE_NORMAL = &H80
Const FILE_ATTRIBUTE_READONLY = &H1
Const FILE_ATTRIBUTE_SYSTEM = &H4
Const FILE_ATTRIBUTE_TEMPORARY = &H100

Private Type FILETIME
    dwLowDateTime As Long
    dwHighDateTime As Long
End Type

Private Type WIN32_FIND_DATA
    dwFileAttributes As Long
    ftCreationTime As FILETIME
    ftLastAccessTime As FILETIME
    ftLastWriteTime As FILETIME
    nFileSizeHigh As Long
    nFileSizeLow As Long
    dwReserved0 As Long
    dwReserved1 As Long
    cFileName As String * MAX_PATH
    cAlternate As String *  14 
End Type
Function StripNulls(OriginalStr As String) As String
    If (InStr(OriginalStr, Chr( 0 )) >  0 ) Then
        OriginalStr = Left(OriginalStr, InStr(OriginalStr, Chr( 0 )) -  1 )
    End If
    StripNulls = OriginalStr
End Function

Function FindFilesAPI(path As String, SearchStr As String, FileCount As Integer, DirCount As Integer)
     'KPD-Team 1999 
     'E-Mail: KPDTeam@Allapi.net 
     'URL: http://www.allapi.net/ 

    Dim FileName As String  ' Walking filename variable... 
    Dim DirName As String  ' SubDirectory Name 
    Dim dirNames() As String  ' Buffer for directory name entries 
    Dim nDir As Integer  ' Number of directories in this path 
    Dim i As Integer  ' For-loop counter... 
    Dim hSearch As Long  ' Search Handle 
    Dim WFD As WIN32_FIND_DATA
    Dim Cont As Integer
    If Right(path,  1 ) <> "\" Then path = path & "\"
     ' Search for subdirectories. 
    nDir =  0 
    ReDim dirNames(nDir)
    Cont = True
    hSearch = FindFirstFile(path & "*", WFD)
    If hSearch <> INVALID_HANDLE_VALUE Then
        Do While Cont
        DirName = StripNulls(WFD.cFileName)
         ' Ignore the current and encompassing directories. 
        If (DirName <> ".") And (DirName <> "..") Then
             ' Check for directory with bitwise comparison. 
            If GetFileAttributes(path & DirName) And FILE_ATTRIBUTE_DIRECTORY Then
                dirNames(nDir) = DirName
                DirCount = DirCount +  1 
                nDir = nDir +  1 
                ReDim Preserve dirNames(nDir)
            End If
        End If
        Cont = FindNextFile(hSearch, WFD)  'Get next subdirectory. 
        Loop
        Cont = FindClose(hSearch)
    End If
     ' Walk through this directory and sum file sizes. 
    hSearch = FindFirstFile(path & SearchStr, WFD)
    Cont = True
    If hSearch <> INVALID_HANDLE_VALUE Then
        While Cont
            FileName = StripNulls(WFD.cFileName)
            If (FileName <> ".") And (FileName <> "..") Then
                FindFilesAPI = FindFilesAPI + (WFD.nFileSizeHigh * MAXDWORD) + WFD.nFileSizeLow
                FileCount = FileCount +  1 
                List1.AddItem path & FileName
            End If
            Cont = FindNextFile(hSearch, WFD)  ' Get next file 
        Wend
        Cont = FindClose(hSearch)
    End If
     ' If there are sub-directories... 
    If nDir >  0  Then
         ' Recursively walk into them... 
        For i =  0  To nDir -  1 
            FindFilesAPI = FindFilesAPI + FindFilesAPI(path & dirNames(i) & "\", SearchStr, FileCount, DirCount)
        Next i
    End If
End Function
Sub Command1_Click()
    Dim SearchPath As String, FindStr As String
    Dim FileSize As Long
    Dim NumFiles As Integer, NumDirs As Integer
    Screen.MousePointer = vbHourglass
    List1.Clear
    SearchPath = Text1.Text
    FindStr = Text2.Text
    FileSize = FindFilesAPI(SearchPath, FindStr, NumFiles, NumDirs)
    Text3.Text = NumFiles & " Files found in " & NumDirs +  1  & " Directories"
    Text4.Text = "Size of files found under " & SearchPath & " = " & Format(FileSize, "#,###,###,##0") & " Bytes"
    Screen.MousePointer = vbDefault
End Sub