How create Select Folder dialog Windows 7 style?

Hallo all.

I want create dialog as in windows 7. Standard getSavePath() do not like me. I want dialog like OpenFileDialog in windows, but for folders.
I try use dotNetObject "System.Windows.Forms.OpenFileDialog", but not very good too.
Found "fos_pickfolders" option for OpenFileDialog, but how set this option from maxscript i not understand.

Maybe who know how create OpenFileDialog with fos_pickfolders option?
Or tell me another variant

Thank you