Click on link with Spotify URI in your mIRC client. Uses DDE ( http://www.mirchelp.net/helpfile/dde.htm ) for talking directly with Spotify

spotify_link.mrc

alias -l spotrx { return /(?:http:\/\/open\.)?spotify(?:\.com)?.(track|artist|album|user.*playlist).([0-9a-zA-Z]+)/ }
on $*:HOTLINK:$($spotrx):*:{ dde -e Spotify OpenLink $+(spotify:,$replace($regml(1),/,:),:,$regml(2)) }
on $^*:HOTLINK:$($spotrx):*:{ return }