Hello rainbowsally

This is the implementation of LaunchFile() in Functions4U:

bool LaunchFile(const char *_file) {
	String file = UnixPath(_file);
	int ret;
	if (GetDesktopManagerNew() == "gnome") 
		ret = system("gnome-open \"" + String(file) + "\"");
	else if (GetDesktopManagerNew() == "kde") 
		ret = system("kfmclient exec \"" + String(file) + "\" &"); 
	else if (GetDesktopManagerNew() == "enlightenment") {
		String mime = GetExtExecutable(GetFileExt(file));
		String program = mime.Left(mime.Find("."));		// Left side of mime executable is the program to run
		ret = system(program + " \"" + String(file) + "\" &"); 
	} else 
		ret = system("xdg-open \"" + String(file) + "\"");
	return (ret >= 0);
}

Please post the details of the system where you find the problems.