Esa funcion no la conosco, pero si lo que quieres es seleccionar un Directorio como el de ShowOpen para Archivos aqui te pongo el codigo
Se ocupa un textbox y un boton
Private Type BROWSEINFO
hOwner As Long
pidlRoot As Long
pszDisplayName As String
lpszTitle As String
ulFlags As Long
lpfn As Long
lParam As Long
iImage As Long
End Type
Private Declare Function SHGetPathFromIDList Lib "shell32.dll" Alias _
"SHGetPathFromIDListA" (ByVal pidl As Long, _
ByVal pszPath As String) As Long
Private Declare Function SHBrowseForFolder Lib "shell32.dll" Alias _
"SHBrowseForFolderA" (lpBrowseInfo As BROWSEINFO) _
As Long
Private Const BIF_RETURNONLYFSDIRS = &H1
Public Function BrowseFolder(szDialogTitle As String) As String
Dim X As Long, bi As BROWSEINFO, dwIList As Long
Dim szPath As String, wPos As Integer
With bi
.hOwner = hWndAccessApp
.lpszTitle = szDialogTitle
.ulFlags = BIF_RETURNONLYFSDIRS
End With
dwIList = SHBrowseForFolder(bi)
szPath = Space$(512)
X = SHGetPathFromIDList(ByVal dwIList, ByVal szPath)
If X Then
wPos = InStr(szPath, Chr(0))
BrowseFolder = Left$(szPath, wPos - 1)
Else
BrowseFolder = vbNullString
End If
End Function
Private Sub Command1_Click()
Text1 = BrowseFolder("Selecciona un directorio")
End Sub
