This one value isn't always populated in every top-level domain on an IISserver.  It is inherited from the top W3SVC setting and if it's been setfor an individual top-level domain this LogFileDirectory property will be setotherwise won't exist.   In order for this code to work, the accountrunning on the local or remote machine needs administrator privilages

using System;
using System.DirectoryServices;
//our custom namespace
namespace myNamespace
{
 //our custom class
 public class domain
 {
public domain(string logpath)
{
logPath = logpath;
}
//some member variables
private string logPath;
public string LogPath
{
get {return logPath;}
set {logPath=value;}
}
public string C(string domainName, string logPath)
{
string strPath = "IIS://TopLevelDomainName/" + logPath;
System.DirectoryServices.DirectoryEntry ds = new DirectoryEntry(strPath);
object s = ds.Properties["LogFileDirectory"].Value;
return s.ToString();
}
 }
}

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