The Amazing box would work. The Viking cards are the same size as Brother/Babylock. Some of the older Pfaff programs have been made to work on newer computers. It was called PCD Win. USB only.
I have a dedicated offline computer with XP for sewing and crafting.
I'm using Babylock Cardworks (no longer made) now Amazing Designs. It takes a Pfaff card. The Amazing box writes HUS . We had an Ellure as well as my 2170.
http://www.nancysnotions.com/product...itable+card.do
You can probably pick up a cheap XP laptop now and keep it offline just for the embroidery.