Problem C# InDesign Server

Hi,

I'm programming in c#, but I've a  problem with sentence: (InDesignServer.Application)(System.Runtime.InteropServices.Marshal.B indToMoniker(configName))

The error is {"Sintaxis no válida (Excepción de HRESULT: 0x800401E4 (MK_E_SYNTAX))"} y   ErrorCode-2147221020

If InDesign Server run service mode it doesn't work, but if I run command service, It works.

I start up InDesign Server with parameter -configuration myIDS1 as service mode as command mode.

Thanks

Best Regards