OpenFile Dialog MultiSelect

    Option Explicit
     
    Private Const OFN_ALLOWMULTISELECT = &H200
    Private Const OFN_CREATEPROMPT = &H2000
    Private Const OFN_ENABLEHOOK = &H20
    Private Const OFN_ENABLETEMPLATE = &H40
    Private Const OFN_ENABLETEMPLATEHANDLE = &H80
    Private Const OFN_EXPLORER = &H80000                         '  new look commdlg
    Private Const OFN_EXTENSIONDIFFERENT = &H400
    Private Const OFN_FILEMUSTEXIST = &H1000
    Private Const OFN_HIDEREADONLY = &H4
    Private Const OFN_LONGNAMES = &H200000                       '  force long names for 3.x modules
    Private Const OFN_NOCHANGEDIR = &H8
    Private Const OFN_NODEREFERENCELINKS = &H100000
    Private Const OFN_NOLONGNAMES = &H40000                      '  force no long names for 4.x modules
    Private Const OFN_NONETWORKBUTTON = &H20000
    Private Const OFN_NOREADONLYRETURN = &H8000
    Private Const OFN_NOTESTFILECREATE = &H10000
    Private Const OFN_NOVALIDATE = &H100
    Private Const OFN_OVERWRITEPROMPT = &H2
    Private Const OFN_PATHMUSTEXIST = &H800
    Private Const OFN_READONLY = &H1
    Private Const OFN_SHAREAWARE = &H4000
    Private Const OFN_SHAREFALLTHROUGH = 2
    Private Const OFN_SHARENOWARN = 1
    Private Const OFN_SHAREWARN = 0
    Private Const OFN_SHOWHELP = &H10
     
    Private Type OPENFILENAME
            lStructSize As Long
            hwndOwner As Long
            hInstance As Long
            lpstrFilter As String
            lpstrCustomFilter As String
            nMaxCustFilter As Long
            nFilterIndex As Long
            lpstrFile As String
            nMaxFile As Long
            lpstrFileTitle As String
            nMaxFileTitle As Long
            lpstrInitialDir As String
            lpstrTitle As String
            flags As Long
            nFileOffset As Integer
            nFileExtension As Integer
            lpstrDefExt As String
            lCustData As Long
            lpfnHook As Long
            lpTemplateName As String
    End Type
     
    Private Declare Function GetOpenFileName Lib "comdlg32.dll" Alias "GetOpenFileNameA" _
 (pOpenfilename As OPENFILENAME) As Long
     
    Private Sub Command1_Click()
        Dim tOPENFILENAME As OPENFILENAME
        Dim lResult As Long
        Dim vFiles As Variant
        Dim lIndex As Long, lStart As Long
        
        With tOPENFILENAME
            .flags = OFN_ALLOWMULTISELECT Or OFN_EXPLORER Or OFN_FILEMUSTEXIST Or OFN_LONGNAMES
            .hwndOwner = hWnd
            .nMaxFile = 2048
            .lpstrFilter = "All Files" & Chr(0) & "*.*" & Chr(0) & Chr(0)
            .lpstrFile = Space(.nMaxFile - 1) & Chr(0)
            .lStructSize = Len(tOPENFILENAME)
        End With
        
        lResult = GetOpenFileName(tOPENFILENAME)
        
        If lResult > 0 Then
            With tOPENFILENAME
                vFiles = Split(Left(.lpstrFile, InStr(.lpstrFile, Chr(0) & Chr(0)) - 1), Chr(0))
            End With
            
            If UBound(vFiles) = 0 Then
                List1.AddItem vFiles(0)
            Else
                For lIndex = 1 To UBound(vFiles)
                    List1.AddItem AddBS(vFiles(0)) & vFiles(lIndex)
                Next
            End If
        End If
    End Sub
     
    Private Function AddBS(ByVal sPath As String) As String
        If Right$(sPath, 1) <> "\" Then sPath = sPath & "\"
        AddBS = sPath
    End Function