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NamedPipeServerStream Constructor (String, PipeDirection, Int32, PipeTransmissionMode)

Initializes a new instance of the NamedPipeServerStream class with the specified pipe name, pipe direction, maximum number of server instances, and transmission mode.

Namespace:  System.IO.Pipes
Assembly:  System.Core (in System.Core.dll)

public NamedPipeServerStream(
	string pipeName,
	PipeDirection direction,
	int maxNumberOfServerInstances,
	PipeTransmissionMode transmissionMode


Type: System.String

The name of the pipe.

Type: System.IO.Pipes.PipeDirection

One of the enumeration values that determines the direction of the pipe.

Type: System.Int32

The maximum number of server instances that share the same name. You can pass MaxAllowedServerInstances for this value.

Type: System.IO.Pipes.PipeTransmissionMode

One of the enumeration values that determines the transmission mode of the pipe.


pipeName is null.


pipeName is a zero-length string.


pipeName is set to "anonymous".


direction is not a valid PipeDirection value.


maxNumberofServerInstances is less than -1 or greater than 254 (-1 indicates MaxAllowedServerInstances)


pipeName contains a colon (":").


The operating system is Windows Millennium Edition, Windows 98, or Windows 95, which are not supported.


The maximum number of server instances has been exceeded.

This constructor creates a NamedPipeServerStream object that has the following characteristics:

.NET Framework

Supported in: 4.6, 4.5, 4, 3.5

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

  • Demand 

    For full trust for the immediate caller. This member cannot be used by partially trusted code.

Windows 8.1, Windows Server 2012 R2, Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

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