How to execute a .Bat with mutliple Parameters from Powershell scripts

Question 1

how do I execue a .bat from a powershell script.

I want to do something like:

foreach($item in $list){

  param1= $item.Name
  param2= $item.path

  C:\Filesystem_Batches\test.bat param1 param2

}

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foreach($item in $list){

param1= $item.Name

param2= $item.path

C:\Filesystem_Batches\test.bat param1 param2

}

Thank you

Question 2

You can call

cmd.exe /C "test.bat param1 param2"

1 2	cmd.exe /C "test.bat param1 param2"

In powershell V3 there is a new espace string –% which allow to send “weird” parameters to your exes.
exemple :

PS> echoargs.exe --% %USERNAME%,this=$something{weird} 

Arg 0 is <jason,this=$something{weird}>

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PS> echoargs.exe --% %USERNAME%,this=$something{weird}

Arg 0 is

Question: