We have updated our Community Code of Conduct. Please read through the new rules for the forum that are an integral part of Paradox Interactive’s User Agreement.
You are using an out of date browser. It may not display this or other websites correctly. You should upgrade or use an alternative browser.
Most probably it will work with Light too as Light changes very few files compared to DH Core, but I haven't really tested it to guarantee that. The simplest way to know is to clone your DH Light folder and install SMEP into it.
The crash is because SMEP uses modified db\spy_cost.txt (which is with the old Armageddon format and is incompatible with DH). Just delete that file (or use the one from DH Light instead) and it works.