SWEN1 virus deletes 'hfbepku.exe' application

My computer was recently infected with the SWEN1 virus. When clearing it from my computer, I apparently deleted a file needed to run applications called "hfbepku.exe". Now the only thing I can access is Explorer (and that only after using the system and boot disk from the original '95 installation). Trying to open or install any applications results in a "hfbepku.exe file not found. This file is needed to open or run applications" error. This includes shutting down, restarting, or restart using MS-DOS from the start menu. Is there anything I can do to repair this damage?
Have you tried reinstalling the operating system?
This was first published in November 2003

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