The following are all the possible entries on startup for WordPerfect that I could find: cffrem.exe dadx.exe
CFFREM.EXE Remind32.exe
NAVBROWSER.EXE CorelCENTRAL 10 I_26dadCC.exe
MFindexer.exe
MFINDE~1.EXE

You might be able to identify it by clicking start, all programs, Startup. If it's listed there, R-click, select properties, find target and delete it there.