I am trying set environment variables that can be used in an XP command batch file by other programs from within my console app:
MyDelphiApp.exe MyParameter AnotherApp.exe c:\somepath\%myEnvVar%\somefile.xxx The object is for MyDelphiApp to set environment variables such as "MyEnvVar" in a way that can be used by other programs in the batch, or on the command line such as %myEnvVar% in my example. I tried the technique showed here: http://www.swissdelphicenter.ch/torry/showcode.php?id=1394, but the registry-based changes do not affect a running batch file in a CMD window (only after reboot, or logoff/logon). In addition, the CMD window does not seem to respond to the SendMessage(HWND_BROADCAST.... that is supposed to update the current environment. Placing a SET command before and after MyDelphiApp.exe shows no change in the environment. If a simple SET command in a batch file can set an environment variable, isn't there an API from a program that can do the same thing? I know this was possible in the TP/DOS days - was it eliminated with NT/2K/XP? For now, I'm using a workaround where MyDelphiApp writes a new batch file containing SET commands, which is then called by the main batch file. It's ugly, but seems to work. I would still like to understand how to properly write environment variables from a program.
