Labyrinth of Time

I got this game recently, but it came without a manual. I went to a game manual download sight and though they had it listed, I couldn't access it. Does anyone have some basic instructions for me? I had to cont/alt/dele to exit the game.
I'm going to play this on my Win95. I have got the game started, but there isn't any sound. I know this is common with DOS games, but I don't want to fiddle with the config.sys etc. Is sound critical for the enjoyment of this game?

On Main Control Panel:
To quit intro - press ESC
To quit Game - press Q
To cycle hotspot - press Tab.
To Take - press 1.
To Move - press 2
To Open - Press 3.
To Close - Press 4.
To Look - Press 5.
Inventory - Press 6.

On Inventory Panel:
Main Control Panel - press 1.
Disk access (save and load) - press 2.
Use - Press 3.
Examine - Press 4.
Scroll backwards - Press 5.
Scroll forwards - press 6.