Should be no need to send big files. Most likely the code in question would only be a few lines, I doubt that it would be more than 100. The rest of the project is not needed, just the part that does the copy, rename, kill or whatever it is doing. Hard to tell from the OP. Talks about deleting a record, copying them all, killing files and renaming files. could be that it is a timing issue you face where you are trying to rename or kill a file that is still in use.