Is there a way to set the environment path programmatically in C++ on Windows?

Question

Is there a way to set the global windows path environment variable programmatically (C++)?

As far as I can see, putenv sets it only for the current application.

Answer 1

Yes You are correct. You also need to effect these settings without logging off

Send Message of borad casting to all windows SETTINGCHANGE for the parameter (LPARAM) "Environment" with SMTO_ABORTIFHUNG for some milliseconds(5000) using SendMessageTimeout API.

This is what setX.exe provided with resource Kit does.