Humph.
It seems to miss some variables! It gets all the variables that you see in "Environment" under "My Computer" properties, but not all the variables you get with SET or the API, I do not have an answer for that, researching...
"The five senses obstruct or deform the apprehension of reality."
Jorge L. Borges?
"Premature optimization is the root of all evil in programming."
Donald Knuth, repeating C. A. R. Hoare
"To die for a religion is easier than to live it absolutely"
Jorge L. Borges