I am looking as the title says to kill a process (for example name.exe) on multiple remote machines. I can do it individually using pskill or taskkill using (for example): pskil
If you have a text file with a list of machines you could do it trivially with:
get-content serverlist.txt | Foreach-object {& pskill -t \\$_ -u -p name.exe}
There are many methods to do this in Powershell like WMI, Invoke-command etc. Here is an example to do it using WMI:
$cred = get-credential
It will pop-up for Credential. This way you can make sure that credential is not visible in the script.
(Get-Content 'c:\Temp\Computers.txt') | ForEach-Object {
Get-WmiObject -computer $_ -class win32_process -filter "name = 'name.exe'" -credential $cred| %{$_.terminate()} | out-null
}