Forums mIRC Help Setup to Connect to multiple servers automatically

The command would be:
server efnet.demon.co.uk -j #a,#b,#c apples

-m means in a new server window, so you can remove the -m for the first command, but leave it in for the second (didn't notice I'd left it in).

I'd suggest going to file -> new in your remotes then putting it in (so it's in a new file).