Firing a SharePoint Workflow by updating a list item through List Webservice

Question

I am developing, a simple SharePoint Sequential Workflow which should be bound to a document library. When associating the little workflow to a document library, I checked these

Answer 1

I've encountered this issue as well and found out that once a workflow has started, it cannot be re-started automatically, no matter how you update the item. You can, however, manually start the workflow again, as many times as you like.