You can use K-Meleon's Loader for this purpose. As long as the loader is running, you will have an icon in the tray that will open the browser when clicked. By default, the loader is set to preload the browser to accelerate it's startup. When you change the preload level to "None", the loader won't preload anything but will still open the browser when you click the tray icon.
Even with using the loader, it won't keep track of the pages you still have open unless you use the session plugin.
I would say that Trayit or a similar program would be your best bet.
guenter i wanted to minimize to tray, tray is located down-right, where u have the hour for example, thx anyway
the loader doesn't save the pages that u have currently open, when closing, so i guess i'll use the Trayit program, which looks quite nice, so thx for helping