For Forms 9i/10g:
Some antivirus software blocks .chm files from being opened via COM/OLE calls (how Forms invokes the help viewer). Temporarily disable real‑time scanning for help files to test. frm-18105 failed to start the help system
FRM-18105 occurs when the application cannot initialize its help system. This post explains likely causes, troubleshooting steps, and fixes. For Forms 9i/10g: Some antivirus software blocks
After fixing, test every form that includes context‑sensitive help. Also inform your end‑users that F1 help is restored. and fixes. After fixing