Writing an empty second "flag" file after data file to FTP

Before I start, yes I'm well aware this is not a good way to handle file locking! Unfortunatly we have a legacy system we cannot change and rename is not an option. We are using PI7.0/SPS12.

We write a file to FTP location, and subsequently need to write a file of similar name (appended with "OK"). Ideally an empty file.

I dont really want to go down the path of writing an adapter module just for this (I'm not even sure if you can generate multiple outputs with different filenames from 1 call to an adapter module!).

Any ideas?

Thanks,

James.

Points where appropriate.