private void LoadDomainInfo()
{
// These is no direct way of retrieving current DC's domain info, so we are using a combination of 3 calls.
// We first retrieve FSMO roles. The PDC emulator lies in the same domain as the current server.
var fsmoRoles = this.drsConnection.ListRoles();
// We need the DC object of the PDC Emulator. It is the parent of the NTDS Settings object.
string pdcEmulator = new DistinguishedName(fsmoRoles.PdcEmulator).Parent.ToString();
// Get the PDC account object from the domain partition.
var pdcInfo = this.drsConnection.ListInfoForServer(pdcEmulator);
string pdcAccountDN = pdcInfo.ServerReference;
// Get the PDC Emulator's domain naming context.
this.domainNamingContext = new DistinguishedName(pdcAccountDN).RootNamingContext.ToString();
// Get the PDC Emulator's NetBIOS account name and extract the domain part.
NTAccount pdcAccount = this.drsConnection.ResolveAccountName(pdcAccountDN);
this.netBIOSDomainName = pdcAccount.NetBIOSDomainName();
}