I copy mp10setup.exe to \$OEM$\$1\install\WMP10\ and then placed my program in there. but then on the site it says

Add these lines to your batch file:

ECHO.

ECHO Installing Windows Media Player 10

ECHO Please wait...

start /wait %systemdrive%\install\WMP10\MP10Setup.exe /q:A /c:"setup_wm.exe /Q /R:N /DisallowSystemRestore"

the problem is i don't no where or how to make one. can some one please help me and also i did it with other programs to. can i put more batch lines? if so how and where to place the batch file so i hope some one could help me out here. THANKS.

How about slipstreaming it into your source? If so, check out HFSLIP. Very easy once you've got everything downloaded.

@thilakshan: I believe the batch you quoted could be adapted for the RunOnceEx install method. You will find instructions in the unattended guide (at the top of the page under the MSFN logo) in Intermediate Users --> Methods of Install --> RunOnceEx. Good luck.