HFNetchk?

I recently sat and failed the 70-291 exam and hit upon a question about analyzing a PC's update status. The vaild options were MSBA and something called HFNetchk.exe. The Syngress and MSPress books don't mention this program and I'm sure I didn't see it in Transcender. I researched it on the web and it seems to be the same as MSBA. Any ideas on what the difference is and what Microsoft might prefer?
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This is what I remember on top of my noodles!