Hi Neal, one guy called it chemotherapy for wood. It's bit strange because the antifreeze (EG) has water in it, so when you first apply it it seems to make it worse. From what i can tell over time, like chemo, it kills the fungus.
The problem i am discovering is that the rot is sometime deep in the posts, in little pockets surrounded by healthy wood, i don't if the antifeeze would ever get to it. So have to drill around, but that is taking too much time, i'm just going to the cut a couple of the worse looking posts right out and be done with it today. I have to be careful now that the EG is all over the wood.
Luckily i can get at these all posts! And cut them out if need be. I am very aware now what a disaster it could be to buy a house with extensive dry rot or you don't know where it is. With the hot weather this has triggered allergies problem for me for the last 4 weeks. Living in a rotting house can make someone miserable.
apparently boric acid or borax also works well.