[brnn]

Can I run my .bat files through RunOnceEx.cmd and do I have to add any switch after them to work correct?
(In the .batch are included all the switches needed to install the program, and there is @cmdow /hid in the top because I don't want the cmd window to be shown)

[Plamdi]

Yes you can, and if you don't want the batch file shown at all use VBS to launch it - or even better use VBS to perform the tasks of your batch file. Example VBS code to run a custom program hidden:

Option Explicit
On Error Resume Next
If Wscript.Arguments.Count<>1 Then WScript.Quit(0)
Dim WshShell,p
p=Left(WScript.ScriptFullName,Len(WScript.ScriptFullName)-_
  Len(WScript.ScriptName))
Set WshShell=WScript.CreateObject("WScript.Shell")
WshShell.Run p&Wscript.Arguments(0),0
Set WshShell=Nothing
WScript.Quit(1)

Usage: WSCRIPT SCRIPTNAME.VBS BATCHFILE.CMD

Requirements: Batch file in same directory as script.

But yes, you can use .BAT/.CMD in the same way as .EXE or .COM from RunOnceEx.cmd.

[TjobzzZ]

One thing to do is rename the .bat to .cmd, it has the same but extended capabilities. If you don't want to see the command window, use CMDOW. Just run a search fo it or look on the MSFN unattended site.