I was able to use mq2log plugin and just dump all the child windows, not the open/active ones. It did take about 30 minutes for it to capture (even though the timestamps show it took only 2 minutes). Guess that is how much it slowed my eqbcs server. I think the 12-29 source has the /windows open feature working again but I was too lazy to compile it, but if anyone is interested in capturing, I think the final count I got was 547 available windows.
I would attach it but the forum limit prevents me from uploading a 9MB file