Who are your clients? What industry? Is there a centrally-important program they all use that requires IE8 or WinXP, or do they just have a massive fleet of XP machines and not want to upgrade?

As a software vendor, I used to have a lot of trouble getting my clients to switch away from IE, but I feel like that really has been changing. My clients are large GC firms and other kinds of construction companies (infamous for being behind the times when it comes to technology) and I had >80% of them on Chrome 6 months ago. Have you tried telling them that even Microsoft dropped support for WinXP and IE8 a year ago? (I think it happened last April.)

They view IE as part of their support burden and rather not add to that burden until they can change the version requirement on everything at the same time. They would probably be happier if we branded Chrome and narrowed its UI to our app's needs.

> Have you tried telling them... They know. They are the purse holders, not the brain holders.

(unrelated side note: looks like someone is disappointed that I have clients on down-rev browsers)