I am running 4.1 in PROD on my own IIS server.

The problem is each time I want to deploy new compiled code (mostly DLLs) I am blocked by "file/folder in use". I have tried the following:

-Stopped the Site
-Stopped the Application Pool
-Killed the 3 processes w3wp.exe, conhost.exe and Nop.Web.exe but still cannot overwrite the DLLs.

Is there a simple way to deploy new DLLs to an IIS server?

many thanks,

Robby.