Visual C# Scripts

Trying to create some scripts with Visual Studio 2010 , for C# 

The Function definition is as follows

int reg_save_param(string ParamName, object options)
Member of LoadRunner.IWebApi

object is a primary type , what kind of 'object' is it looking for ? Iam unable to overload with multiple options as we normally do for a regular script .. 

I tried all of the following , none worked .. What needs to be done to sort this out ? 

web.reg_save_param("C_Host","LB=\"connection-details\" RB=\"port\"");
web.reg_save_param("C_Host","LB=connection-details RB=port");

web.reg_save_param("C_Host","LB=connection-details, RB=port");

web.reg_save_param("C_Host","LB=connection-details; RB=port");

Thanks

Prabhu