Hey

I'am writing a Windows application using C#. I would like to do this:

Application Start:
   Is User Authendicated (windows)
   does user exists in Administrators or in MyAppGroup ( MyAppGroup = the
AD group for users running the application)

If IsUser Authendicated  = False or not in the above groups -> display login
form

I found some code:
System.Security.Principal.WindowsIdentity ident =
System.Security.Principal.WindowsIdentity.GetCurrent();

System.Security.Principal.WindowsPrincipal prin = new
WindowsPrincipal(ident);

System.Threading.Thread.CurrentPrincipal = prin;

IdentityReferenceCollection col = ident.Groups;

IdentityReference ir = col[1];

In the ident object i'll get the IsAuthendicated property and also i see the
Groups property

The two last lines was just to have a look on a group. I cant get the group
name (like Administrator) how to do that?

Kind regards
Johnny E. Jensen