Win Console program environment variable

I'm trying to translate a UNIX C program to a Windows console program. Can anyone tell me how to set an environment variable in a console program? The UNIX function is setenv, and I find a Windows version SetEnvironmentVariable, but what about for a console program?
Thanks!

There's nothing to prevent you from call SetEnvironmentVariable() from a console application.
The MS run-time library supports _putenv() as well.

gg

you can also do it from the control panel in the System dialog. Click Advanced/Environment Variables