How to save and/or erase an eventlog
You can save the object only if the specified file doesn't exist and if the directory exists.
If you save the eventlog from another computer, a temporary file is created on the remote computer, and then the file is moved where you specify it. You must have the write permission on the temp directory of the remote computer and there must be enough space in this remote directory.
Don't forget that you can schedule the save and/or erase of your eventlog. See How to schedule an action for more details.