Pskill not working on VBS script

On the next VBS script, pskill seems not to be working, see the error returned attached, and this is the code. i think it has to do with the declaration of wshShell?? But im not sure.

Option Explicit
Dim objWMIService, objProcess, objFSO, objTextFile
dim colProcess,colServices, colItems
dim objItem, objService
Dim strComputer, strProcessKill, strProcessMem
Dim memLimit, processMem
Dim mustKill
 
strComputer = "."
strProcessKill = "'DLLHOST.EXE'"
strProcessMem = "'DLLHOST'"
memLimit = 10000
mustKill = 0
 
  
 
Set objWMIService = GetObject("winmgmts:" & "{impersonationLevel=impersonate}!\\" & strComputer & "\root\cimv2")
Set colProcess = objWMIService.ExecQuery ("Select * from Win32_Process Where Name = " & strProcessKill )
dim intRC
For Each objProcess in colProcess
    msgbox "Pid is..." & ObjProcess.ProcessId
    
    processMem = objProcess.WorkingSetSize/1024
    msgbox "Size is " & processMem
                If processMem >= memLimit Then
                   MsgBox "is more than" & memLimit & " Kb"
       mustKill = 1
                Else
                   MsgBox "is less than " & memLimit & " Kb"
                End If    
    if mustKill = 1 then
        msgbox "im gonna kill it"
	wshShell.Run "cmd /k C:\pskill.exe -accepteula ObjProcess", 1, True
	if intRC = 0 Then
           msgbox "Successfully killed process."
        else
           msgbox "Could not kill process. Error code: " & intRC
        end if
    end if
Next

 
Const ForAppending = 8
 
Set objFSO = CreateObject("Scripting.FileSystemObject")
Set objTextFile = objFSO.OpenTextFile ("c:\informe_dllhost.txt", ForAppending, True)
 
if mustKill = 1 then    
    objTextFile.WriteLine(now & vbnewline & " Process has been killed with " & processMem & " Kb" & vbnewline & vbNewLine)
end if
 
objTextFile.Close
 
WScript.Quit

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