pkill for Windows (WSH)

pkill.js

var objArgs = WScript.Arguments;
if (objArgs.length == 0) WScript.Quit(0);
var filter = objArgs(0);

var objProcess = GetObject("winmgmts:\\\\.\\root\\cimv2");
var listPIDs = new Enumerator(objProcess.ExecQuery("SELECT Handle, CommandLine FROM Win32_Process " +
            "WHERE Name LIKE '%" + filter + "%' OR CommandLine LIKE '%" + filter + "%'"));

for ( ; !listPIDs.atEnd(); listPIDs.moveNext()) { 
    var process = listPIDs.item();
    if (process.CommandLine.indexOf(WScript.ScriptName) < 0)
        objProcess.Get("Win32_Process.Handle='" + process.Handle + "'").Terminate();
}