you can
list the folders
and show them in a dialog
see how:
("$AV_ASW" "$Recycle.Bin" "AeroCAD" "Arquivos de Programas" "Autodesk" "Cadastro" "CADian" "Cadian-Saep"
"Camtasia Studio 6" "Curso" "Documents and Settings" "E-Rural" "E-Rural-Pd" "EFernal_Dlls"
"Ef_Quant" "GetData" "Gr-Acad-2017" "Gr-Acad-BS" "Gr-Acad-C" "Gr-Acad_Loel" "Gr-Arqui-2017" "Gr-Pack-Usb"
"Gr12000" "Gr12000-Bck" "Hidra-2017" "Hidra2000" "Hidra2015" "Hidra2018" "Hidra_C" "lexmark" "Lixo"
"Memorial-2018" "MSOCache" "PerfLogs" "PowerLines" "Prec Tech Repositório" "Prec_Tech_Cadian"
"Program Files" "Program Files (x86)" "ProgramData" "Projetos VBasic 6" "PsPad" "Recovery" "RModel"
"SimCads" "System Volume Information" "Users" "ViaCabos-Cad" "Windows")
("Cadastro" "CADian" "Cadian-Saep")
nil
("Cadastro" "CADian" "Cadian-Saep" "Camtasia Studio 6" "Curso")
("Documents and Settings")
nil
("GetData" "Gr-Acad-2017" "Gr-Acad-BS" "Gr-Acad-C" "Gr-Acad_Loel" "Gr-Arqui-2017"
"Gr-Pack-Usb" "Gr12000" "Gr12000-Bck")