HELP: PC System Call

["John Cupak" <Jcupak744@attbi.com>]

I teach Ada 95 using N. Cohen's "Ada as a Second Language, 2ed".

In the past, the students used UNIX workstations, and I assigned them
the GETENV problem from them book. You know, call the UNIX
getenv function with an environment variable, and get the mapped
results back. We used all the C interface libraries, and it work just
like in the book!

But, now we've replaced all the UNIX workstations with PCs, and I
need a similar problem to give the students.

Does anyone have a nice, simple, Ada 95 "call" to an existing PC
library function (even a DLL?) that I can substitute for the GETENV
problem?

Let me know both here, as well as my work email: John_J_Cupak@raytheon.com

Thanks,
John