drag and drop files

Hi!

I've got a question. For our project we use Microsoft Visual Basic 6.0 and Microsoft Outlook 97.
We need to implement the feature when user can drag a file from e-mail message or Windows Explorer and drop it into the Visual
Basic form. It works quite nice with Windows Explorer. Visual Basic understands that user drags and drops a file. The problem occurs
when user tries to drag and drop file from attachment of Outlook message. The program says that it's not a file but a metafile with graphic.
There is no problem when user tries to drag and drop attached file from Outlook to Microsoft Office products or Windows Explorer. So, the question
is when can we find information about how implement drag and drop feature to get file from attachment in Outlook message to our application?

Best regards,
Roman Konovalov