options > dcc = if file exists, resume

I'm not sure why you guys don't just answer the question instead of going into a thing about illegal file transfers. There are plenty of us who use mIRC for legal file transfers of large sizes. It's much easier for me to send files to and from family, friends, and even my work computers sometimes using mirc because it's the only thing I trust for security reasons, and the simplicity for my family once set up is perfect. Forget about the crackers, save the soapboxes for the general forums, and don't waste our time if you're not going to answer the questions.