CSI Creator's Wife: Our Marriage is DOA

Jennifer Zuiker -- whose hubby, Anthony Zuiker, created the crime show which has generated more than $6 billion -- filed legal docs in L.A. County Superior Court, citing "irreconcilable differences."

Jennifer is asking for child and spousal support.

And, we're told, there is NO PRENUP. So divide $6 billion by 2!

The couple married in April, 1999. They have 3 boys.