I've certainly had to resurrect research code written 10+ years before I got to it. It's usually not too hard as long as it's in C/C++/Fortran and doesn't have

I've certainly had to resurrect research code written 10+ years before I got to it. It's usually not too hard as long as it's in C/C++/Fortran and doesn't have too many dependencies. Something like Matlab, on the other hand, is often a nightmare...