Programmtic way to set "PATH" in Windows 2000

Your only chance to do so is using the registry and adding/modifying entries under

HKEY_CURRENT_USER\Environment

or

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Session Manager\Environment

Ooops - make

   HKEY hBase = bSystem : HKEY_LOCAL_MACHINE : HKEY_CURRENT_USER;

read

   HKEY hBase = bSystem ? HKEY_LOCAL_MACHINE : HKEY_CURRENT_USER;

Thanks. But the problem here is that it does not take into effect until I reboot the system. I am looking for some solution where as soon as I update the registry, other processes can use it.

Rebooting should not be necessary - that is exactly the way it is handled when you alter user/system environment variables using the "My Computer" properties...

Dont use the registry but use the 'DOS' prompt.
Execute SET PATH

Arrg!  Thought I was in the VB area....  :-)

The code should of course be like this:

DWORD Result;

SendMessageTimeout(HWND_BROADCAST, WM_SETTINGCHANGE, 0, "Environment", SMTO_ABORTIFHUNG, 5000, &Result);