Thanks Alnoor - I haven't been able to fully test because I already have Crystal 2011 on my office PC so running the install prompts for reinstall/repair.
I was able to run Sage 100 2014 install - just not the Crystal. And sadly, but not unexpectedly, the Sage site has a very narrow set of browsers it will support if you try to re-download. This customer was on IE 11 and I'm not about to rip that out and install some earlier version so I can re-download 2014 --- -and then be blamed by the customer for every stray error message that pops up on their other software.