Determining members of local groups via C#

Question

I wondered whether anybody knows how to obtain membership of local groups on a remote server programmatically via C#. Would this require administrator permissions? And if so

Answer 1

It appears there is a new Assembly in .net 3.5 called System.DirectoryServices.AccountManagement which gives a cleaner implementation than System.DirectoryServices. Dominick Baier blogs about a couple of simple operations including checking membership of a group:-

public static bool IsUserInGroup(string username, string groupname, ContextType type)
{
    PrincipalContext context = new PrincipalContext(type);

    UserPrincipal user = UserPrincipal.FindByIdentity(
        context,
        IdentityType.SamAccountName,
        username);
    GroupPrincipal group = GroupPrincipal.FindByIdentity(
        context, groupname);

    return user.IsMemberOf(group);
}

I think I will use this approach, thanks for the suggestions though however! :-)