I have SharePoint state machine work flow(Visual Studio 2008) , in specific state i create task .
when user finish this task he can upload document as attachment for this task
then work flow goto another state
in second state i create new task for another user which will see the previous attachments of last task
and i try to see the properties of SPWorkflowTaskProperties to read attachment but i didn't find any thing
Best Solution
Assuming you want to get the actual attachment (as opposed to a link to the attachment) you will probably have to get it from the library directly:
http://www.binarywave.com/blogs/eshupps/Lists/Posts/Post.aspx?ID=26
From the above: