Open pdf within VB.NET

Question

Hi, I have an Access database full of pdf inserted into the DB as OLE objects. I want to open want to retrieve the pdf and open it within VB.NET. I tried using the Diagnostics.Process.Start("C:\7-4.pdf") command and it did work but in this case I wont be suppling the path but the actually pdf from Access db. How can I retrieve the pdf and open it using such a statement? than