Definitely. My company has several vendors that require us to use IE and Silverlight to access their products. It's been a pain for us in IT to figure out how to support those vendor's products while still maintaining security.
Oh yeah, I forgot about Silverlight, cries
I had to install it for a customer yesterday. I actually thought it had been retired...
I mean actually paying or giving discounts to users to install such a notorious piece of software, like Flash.