# NamedPipe components

| [tNamedPipeClose](https://help.qlik.com/talend/r/en-US/7.3/components/namedpipe/tnamedpipeclose) | Closes a named-pipe at the end of a process. |
| --- | --- |
| [tNamedPipeOpen](https://help.qlik.com/talend/r/en-US/7.3/components/namedpipe/tnamedpipeopen) | Opens a named-pipe for writing data into it. |
| [tNamedPipeOutput](https://help.qlik.com/talend/r/en-US/7.3/components/namedpipe/tnamedpipeoutput) | Writes data into an existing open named-pipe. |