Windows Help version 3.1 does not support any index statements.
| Statement | Meaning |
| \bxe | Bold cross-reference or page number. Not supported. |
| \ixe | Italic cross-reference or page number. Not supported. |
| \rxe | Generate page numbers for range of text specified by bookmark name. Not supported. |
| \txe | Use text instead of page number. Not supported. |