When you finally realise that the cipher used in room 2 was the Bifid cipher, you come into the next room. The first thing you see is some paper:
Next, you walk forward to take a look at the keyboard. This one is a normal keyboard. Then you turn to look at the wall, and, as usual, there is something carved into it:
I was involved with making email attachments possible.
Hmm... What could this mean? Well, you have not died yet. You may as well try.
So far, everything up until the point where the first room is entered is correct. You will have to dig deeper to find what's hidden in there.
A certain edit I made may be of importance...
Bob has found the final cryptogram of this door, so now all that remains is to decipher that code!
HINT 4 (REQUIRED TO SOLVE):
I halved the bottles standing the wall.
The next door will be added when this door is solved!