Check your university library or economics department. Ask: “Does our site license cover LIMDEP? Can I get a student copy?”
However, if you need to use LIMDEP legally without paying the full commercial price, there are legitimate ways to access it for free or at a reduced cost. limdep software free download
R is the most powerful free alternative. Here is how to replicate common LIMDEP tasks in R: Check your university library or economics department