Dim OCS As CSDN.OCS
Dim App As CSDN.Ocs_Application
Sub Test()
    Call Login
    
    Dim fTree As CSDN.FoldersTree
    
    Set fTree = App.FoldersTree
    
    I = fTree.ShowModal("Дерево папок пользователя")
        
    Set fTree = Nothing
    
End Sub
Sub Login()
    
    If OCS Is Nothing Then Set OCS = CreateObject("CSDN.OCS")
    
    If App Is Nothing Then Set App = OCS.Login 
    
End Sub