Finding VSS-aware apps on your server

Did you catch the webcast on protecting Virtual Server with DPM? I watched the replay this afternoon and learned a new trick from Allen Stewart (who gives a really excellent presentation, btw).

How to identify VSS-aware apps on Windows Server 2003: at a command prompt, type vssadmin list writers. He mentions it in the context of explaining how VSS writers works. Of course I immediately had to pause and try it - found 10 writers on my server. I don't often have a need to look for VSS writers ("not often" = "never") but hey, I got to learn something new!