Extract Non-OLE attachments from OLE Files(Office Files)

[miztaken]

Hi there,
I want to extract PDF, ZIP or any other file (non-ole) file embedded
inside OLE File such as (DOC,XLS or PPT). but i am unable to do so.
I have been using .NET and Office COM component.
I can extract OLE attachments but cant extract Non-OLE objects, the
only thing i can do is to activete them.
I cant receive anything in OLEObject and also i am unable to copy it
in clipboard and write it in disk.
Is it possible to extract these objects or not? If yes how can it be
done,
If no, what can be the work around?

Please help me
miztaken