It's a bug. I tried applying the hotfix MS supplies,
WindowsXP-KB894391-x86-ENU, but it's only a temporary fix. Every time I have
to restart my computer after an update, that same error message pops up again
and I'm back to square one. I have an HP Officejet All-in-One, and HP has
troubleshooting directions on its website for the DEP blocking generic host
problem. I updated the Officejet software, and the software for all my
programs and hardware, but that didn't help either. This must be a common
problem, because the Windows XP Troubleshooter suggests visiting the software
publisher's website to see if a DEP-compatible version of the program is
available. So far, nothing I've tried works, and that includes the MS
hotfix. I hope someone out there has a solution to this problem. It's
maddening.
