running anything a shell makes it load instead of the windows shell explorer.exe. Doing it this way makes a front end load faster and look embedded into the OS instead of just a program launched within windows. You lose your start menu bar.. but most of us arent using that anyway. You also lose the ability to set programs to run at startup thru windows. I use RR as my shell and have a batch file running all the support programs that would normally load automatically with windows.