All switchs metioned here didn't work in my unattended cd. I don't know why. I found if I set Media Player 9 at first, then 10 can be installed silently in command line mode. So I use InstallRite to set 9, then run 10's setup. Unfortunatly, the same command didn't work in RunOnceEx mode. "setup_wm.exe /Q:A /R:N", this command just work in command line mode.
Is there any advice?