Once your torrent has downloaded it will trigger this program if you set up your config correctly.
If you use a host other than 127.0.0.1 you have to pass it to the program as a parameter.
Change your torrent config to allow the following: (TransmissionQT config)
{
"rpc-enabled": true,
"rpc-port": 9091,
"rpc-username": "",
"script-torrent-done-enabled": true,
"script-torrent-done-filename": "INSERTYOURPATHHERE\\TorrentCleanup.exe",
}