[nostrademons]

That makes it far, far more likely that they're stuck on IE6. Last time I went to the doctor's office, I saw a lot of very old Windows machines. You may wish that the world was a certain way (and frankly, I do too), but that won't actually make the world a certain way.

If you want to win this technical battle, your best bet is to say "I'll implement it in ActiveX if you really believe it is necessary for the business. However, Microsoft ended support for WinXP and IE6 in 2014. They have been actively campaigning to get their customers off of it. There are A, B, and C startups out there with competitive offerings that work on the iPad. iPad market share among healthcare organizations has gone up from X to Y% in the last 3 years, while IE6 market share has declined from Z to W%. If we implement this software as an ActiveX control, we will lose out on $M in sales, with the worst-case scenario being that our userbase upgrades from IE6 and we find ourselves out of business with zero market. It's happening already, as you saw from the market share numbers I just shared with you."

Basically, put the fear of going out of business into your management chain, with the data to back it up. (And if you can't find that data - then your management is right, and you shouldn't bother upgrading.) That goes over a lot better than "I read you should never use IE6 for HIPAA data on the Internet."