Help running Daggerfall patch fixsa175 in Dosbox 0.74

Hi all, Hope it's ok to ask for some Win7 x64 dosbox help on this forum.

I have downloaded Daggerfall from an abandonware site and it runs perfectly by dragging a "Dagger.bat" file in to the dosbox icon.

However, I've reached a game-breaking bug which I think can be resolved by running a patch called "fixsa175.exe".

Mounting the correct drive is about my limit in terms of pc knowledge so if possible, simple, step-by-step instructions would be appreciated.

Finally, I need to add that when I mount and then run the patch file in dosbox, I get a message stating that I need put a cd in the disk-drive.

Thanks - any help would be gratefully appreciated.

Solved on another forum