Jeri- The link you provided carries the following warning:

Warning! The system might become unusable if the worm's file is deleted without modifying the EXE file startup key first.

After that the system can be safely disinfected with FSAV. If for some reason the worm's file can't be deleted from Windows (locked file), then you have to exit to pure DOS and delete the worm's file manually or use a DOS-based scanner (F-Prot for DOS for example).

What means "modifying the EXE file startup key"?