I loved SoftICE, especially the NMI button that you could slide into an ISA slot.

I think I lost track because of the lack of support after Windows XP. But I did read (on some dedicated forum) someone had it running with Vista and onwards, just never been able to find it. I think there was a symbol table no show release and a company buy out. Do you use something with Ring Zero now, to substitute it?

No, I moved on to other things, now I'm doing mostly embedded with external debug probes for debugging.