Can't delete the folder created in My Documents with Inno Setup

Question

I have tried to use the program described here Problems in deleting a Folder during the uninstalation with Inno Setup

after the answers were posted but for some unkn

Answer 1

You are trying to delete a folder named 'ExpandConstant({userdocs}\SpellForce2)' (literally), just remove the ' character to the ExpandConstant call (it is a call to a sub-routine).

procedure CurUninstallStepChanged (CurUninstallStep: TUninstallStep);
var
  mres : integer;
begin
  case CurUninstallStep of
    usPostUninstall:
      begin
        mres := MsgBox('Do you want to delete saved games?', mbConfirmation, MB_YESNO or MB_DEFBUTTON2)
        if mres = IDYES then
          DelTree(ExpandConstant('{userdocs}\SpellForce2'), True, True, True);
      end;  
  end;
end;