Is it possible to access the list items in the (hidden) "Forms" subfolder of a document library using the Lists.GetListItems web service method? I need to set the content type of uploaded document templates using Lists.UpdateListItems, otherwise, document created from these templates will have the 'Document' content type and not the content type the template had been assigned to.
Lists.UpdateListItems works in subfolders of the "Forms"' folder, but I need the ows_UniqueId of the list item that represents the uploaded file, and I can only get it using List.GetListItems.
Is there maybe another method of uploading files to SharePoint document libraries, in which you can set the content type?