What's in the back room?

Hint 1 of 7:

You'll need several things from this room.

Hint 2 of 7:

You will only be able to get them if you are alone.

Hint 3 of 7:

If you are there being interviewed by Howard Janous, follow all dialog
trails.

Hint 4 of 7:

You will need to come back later when the office is empty.

Hint 5 of 7:

When you have a chance, look in the cabinet on the wall.