So a few more questions:
1. Does the list auto-update with latest or does is manual update?
2. with already existing files does it auto-delete them or request to delete when updating with newer version. (and do the files have to be un-archived, or doesn't matter)
3. with the above for something like rpgmaker how does it interact with saves? or does one have to backup saves separately. (might be an idea for extra functionality at a later date).
Also I 2nd the python idea

(purely because I am learning it tho XD will switch to C# when I learn that :S )