progstudios webcontrols dll

I had problem with legacy application, it has an old progstudios Combobox and it wasn't working propely.So in order to setup this it's required :

1.drop webctrl_client folder to your server root, it's requiresting it like /webctrl_client/progstudios/1_2/

2.Add add ProgStudios.HttpHandlers to IIS http handlers.

For some reason IIS under Win7 ignore this line from web.config

                <httpHandlers>
                        <add verb="*" path="client_script.aspx" type="ProgStudios.HttpHandlers.ClientScriptHandler, ProgStudios.WebControls" />
                </httpHandlers>

so I added it manually :