COM & JScript

Hello all

I have a question about using the COM interface and JScript. Is it possible? Perhaps I missed something. Below the call to connect, does anyone knows what is wrong?

job = lib.Connect(VixCOM.Constants.VIX_API_VERSION,                      VixCOM.Constants.VIX_SERVICEPROVIDER_VMWARE_WORKSTATION,

                    null, 0, null, null, 0,null,null);

(12, 2) Microsoft JScript runtime error: Type mismatch

Thanks all