if i have multiple batch files say in oem\install\applications

folders

firefox

office

nero

and in each folder i have a batch cmd, so for the guirunonce for all, or do i make one batchfile with all of the programs that i want to install

[GuiRunOnce]

%systemdrive%\install\applications\batch_file.cmd

You can make one batch file with a start cmd to each app. You will need the path to the app.

Here is a example

@Echo Off
CLS
Color F3
Mode 75, 7
Title XP Ua Install
Echo.
Echo Installing App 1 
Start /W %systemdrive%\install\applications\App1\App1.exe /q

CLS
Echo.
Echo Installing App 2 
Start /W %systemdrive%\install\applications\App2\App2.exe /s

CLS
Echo.
Echo Installing App 3 
Start /W %systemdrive%\install\applications\App3\App3.exe /noreboot /s

CLS
Echo.
Echo Installing App 4 
Start /W %systemdrive%\install\applications\App4.exe /noreboot /s /q