I use nothing but Logos, but once bought a copy of Gramcord, which I have never used. I found a retired seminary classmate still using nothing but paper original language resources. I thought I could give him my copy of Gramcord, but neither he nor I can find any information about how to use it with recent Windows systems. Gramcord apparently doesn't reply to e-mail or telephone. Even Google searches get me nowhere. If I/we have to use a virtual machine, it makes more sense to just buy Logos, which is something I can't do for him.