How can I make the mouse cursor always active on an application but the keyboard is active on another application

I need to achieve focus follows mouse but keyboard focus doesn't follow mouse. So the focus is active where my mouse is staying, but the keyboard is safely typing in the other window without changing focus from the window where the mouse is pointing. I tried this powershell script from here link : $signature = @ [DllImport( user32.dll )] public static extern bool SystemParametersInfo(int uAction, int uParam, ref int lpvParam, int flags ); @ $systemParamInfo = Add-Type -memberDefinition $signature -Name SloppyFocusMouse -passThru [Int32]$newVal = 1 $systemParamInfo::SystemParametersInfo(0x1001,

Question by Ahmed El-Hindawi on Super User, licensed CC BY-SA. We show a short excerpt and link to the original thread as credit.