Alain, I very much appreciate the information you provided. I was going to post a help thread, but you seem to have answered my question. My backstory for anyone interested is basically that I had been successfully enjoying dozens of CDLC's found within this fine community for months, until last week when I updated Steam and my macbook pro to Yosemite. Ever since, none of my files will open in RSInjector. Keeping my fingers crossed for a positive outcome soon.