Attachments Scenario 2: K2 SmartForms to InfoPath

Hi,

From an activity "2" using InfoPath, I want to download an attachment previously attached from an activity "1" using a Smartform. I do not want to use SharePoint to store this attachment. I want to use the form and/or process to carry the attachment from one activity to another.

Is this possible? How could it be achieved?

Thanks,