I have that too. That's the Pro Tools version of it. It came with PT5.0 and below in the Extras/Beta folder on the installation CD, and I believe it was included in a menu in the program itself thereafter. I believe there is an actual standalone release of it from Opcode, probably included in OMS versions prior to 2.3.8, but at the moment I'm not so worried about tracking it down since I can just launch the Studio Patches application and change everything from there.
One thing that caught my eye however is that for some reason, at least on my system, changing things in the Names window in Vision doesn't feed the info to the Studio Patches' Names window. But the Studio Patches' Names window feeds it into Vision. Perhaps the Studio Patches Editor is like a master version of it that feeds to all OMS programs, but every program that utilizes OMS can be tweaked and have its own settings and patch subscriptions. Hmm.
One more thing: I noticed that Pro Tools 5.1 doesn't display the note names, only note numbers when inputting midi. I guess that wasn't a feature at the time.