You have an application that calls the ReadFile function on a named pipe server. You run this application on a Windows Vista or on a Windows Server 2008-based client computer. In this situation, the application thread may stop responding on the ReadFile function.
This problem occurs if the named pipe server becomes unavailable. For example, the named pipe server crashes or loses network connectivity.
Note: In earlier versions of the Microsoft operating system, the ReadFile call returns error code 64. This means that the network path is no longer available.