Assembly: System.DirectoryServices (in system.directoryservices.dll)
A Forest object that represents the forest object with which the trust exists.
There is no trust relationship with the Forest object that is specified by targetForest.
A call to the underlying directory service resulted in an error.
The target server is either busy or unavailable.
targetForest is a null reference (Nothing in Visual Basic).
The object has been disposed.
The specified account does not have permission to perform this operation.
Windows 98, Windows Server 2000 SP4, Windows Millennium Edition, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter EditionThe Microsoft .NET Framework 3.0 is supported on Windows Vista, Microsoft Windows XP SP2, and Windows Server 2003 SP1.