MooPlug is a multi-purpose plugin which adds many useful functions to FileMaker.  It is still an early version with only support for the Windows platform, but an OS X version is planned for the future.

Some of the current functionality includes Zip extraction and compression, FTP Upload and download, File, Folder, Font and Colour Dialog showing as well as file and folder creation, copying, moving and deletion.

I think over time as more user requested features get added to it, this free filemaker plugin will become even more popular!

Website:  MooPlug.com