Well, normally you burn a CD from an ISO, install something, and use the burned CD to run it. Sometimes that doesn't work.
I'm going to assume you want this for completely legitimate purposes, and make a note that the staff and hosts of TheRebelFaction.com do not condone support abide or acknowledge software piracy in any way shape or form as legitimate or a legal constructive or morally responsible action.
In any case, the best way to get around something like that in a purely legal fashion, such as a legal backup of a CD you bought as specified in the documentation of said CD, is to make sure that the configuration files point to the right CD drive. Failing that, there exist other alternatives, but they are illegal, and I do not publically know where to find them.
OS: In a world of bon-bons, you are a twinkie.
Ahnk: God damn you, I am Count Chocula and you know it.
I'm not spending my anniversary night thumping my head against the wall. - Damalis, on Moderating TRF
Then tell him you want it harder, damnit! - Ahnk, on Damalis