Weird behaviour in IIS 7.0 - System.DirectoryServices

Answer 1

Does it help if you call RefreshCache() right after the third line?

DirectoryEntry dir = new DirectoryEntry("IIS://" + serverName + "/W3SVC/1/ROOT" + vDir, @"adminusername", @"password");
dir.AuthenticationType = AuthenticationTypes.Secure;
dir.RefreshCache();

Answer 2

While this isn't exactly an answer I would point out that System.DirectoryServices is not generally used to interact with IIS. While it can give you access to IIS settings, WMI is generally a better choice.

Answer 3

I got the answer to the problem (with some help from one of my colleagues)

Here is the solution: 1. The program needs to add (pseudo?)entries to the IIS metadata before it access the file/folder under the virtual directory, before we access the entry:

try
            {
                // make pseudo entries:
                DirectoryEntry folder = rootDir.Children.Add("Folder", "IISWebDirectory");
                folder.CommitChanges();
                file = folder.Children.Add("File.aspx", "IISWebFile");
                file.CommitChanges();
            }

Then voila it works

PS:

DirectoryEntry dir = new DirectoryEntry("IIS://" + serverName + "/W3SVC/1/ROOT" + vDir, @"adminusername", @"password");
dir.AuthenticationType = AuthenticationTypes.Secure;
dir.RefreshCache();

Directory.Refresh does not help