The Process Files action always processes in sorted order (actually it's the order returned by FindNextFile, which is alphabetical on NTFS -- see
http://msdn.microsoft.com/en-us/libr...=vs.85%29.aspx). One option would be to name the files so the sorted order is correct (i.e., by left-padding with zeros). The attached project would rename the files to sort properly.
Otherwise, you would need to manually sort (iterate with process files and store in sorted order) and then iterate over the sorted list.