A company I worked for had a website where you could order mobile phones and subscriptions from different providers. This was just a frontend, and behind the sc

A company I worked for had a website where you could order mobile phones and subscriptions from different providers. This was just a frontend, and behind the scenes, they just ordered them directly from those providers. But those providers had terrible sites still written for IE6 (this was in 2010 I think). And yet those sites where all they had (for some reason; I don't know the full background). So what happened is: the customer would order their phone subscription on the front end, that would create a job file that would be sent to a scheduler that managed 10 Windows VMs that used a Ruby Watir script to direct IE6 to fill in the data from the job file on the old decrepit website. It's the most horrific hack that I ever touched (I forgot exactly, but I had to make some adjustments to the system), but it worked perfectly for a couple of years until those providers finally updated their websites.