.NET FOLLOWER

     As you probably know, you can deploy several Shared Services in a SharePoint farm, having each of them serve one or more web applications. If you need to get the name of Shared Serviceserving your web application programmatically, you can use the following method:

public static string GetSharedServiceName(SPSite spSite)
{
    try
    {
        ServerContext sc = ServerContext.GetContext(spSite);
        PropertyInfo srpProp = sc.GetType().GetProperty("SharedResourceProvider", BindingFlags.NonPublic | BindingFlags.Instance);
        object srp = srpProp.GetValue(sc, null);
        PropertyInfo srpNameProp = srp.GetType().GetProperty("Name", BindingFlags.Public | BindingFlags.Instance);
        string sspName = (string)srpNameProp.GetValue(srp, null);
        return sspName;
    }
    catch
    {
        return null;
    }
}

The method looks a bit obscure because of Reflection we have to use, as there is no supported way to get what we need without it. The ServerContext object contains the internal SharedResourceProvider property, which is an object of the internal SharedResourceProvider class. So, there is no way we can do that without using Reflection.

Please also note that according to MSDN, the ServerContext object provides run-time methods for Shared Services in Microsoft Office SharePoint Server 2007. In other words, ServerContext is available only in MOSS (I’m talking about SharePoint 2007. Yes, I still use it 🙂 ). The ServerContext is defined in Microsoft.Office.Server.Administration namespace in the Microsoft.Office.Server DLL.

Example of use:

string sharedServiceName = GetSharedServiceName(SPContext.Current.Site);