Hi, Bonnie.

Try this:

[WebMethod(MessageName="GetApparatusList2")]
public string GetApparatusList(string GUID, string Message, long StationKey)
{
...
}

Doing like this, on the client you will call GetApparatusList, and all the mapping for the messaging will be done internally... you don't need to worry about.

Sorry, I'm on a rush now... let me know either if you succeeded with this, or if you had some trouble.

HTH