How does this cheat for Ultima IX works?

How to get a black rock sword and flame armour:
Delete everything under [COMBAT COMMANDS] (you will find this if you go into notepad and open default.kmp which you will find were ever you installed ultima 9) and type in ALT+SHIFT+SPACE+FI=GIVE_AVATAR_BLACKROCKSWORDANDFLAMEARMOUR and then save that and than open your save gave and your armour and sword will be replaced by the black rock sword and flame armour!

Because when i run the game it says that the SPACE+Fi is not a recognized key....

I have tried installing diferent patches, and changing the I for an 1 but remains the same.
Is this cheat false or am i doing it wrong?