| Filename extension | .nsc |
|---|---|
| Internet media type | application/x-conference |
| Developed by | Microsoft |
| Type of format | multicast stream |
Windows Media Station file (*.nsc) is the session description file for Microsoft's Media Stream Broadcast (MSB) protocol.
Introduced with Microsoft NetShow 2.0, the file extension .NSC stands for NetShow Channel, the former name of the service. NSC files are text files that contain stream configuration information enabling NetShow clients to connect to a multicast stream coming from a NetShow server. NetShow 2.0 was the first commercial streaming media system to support multicast streaming. Windows Media Services is Microsoft's latest product for generating multicast streams and these proprietary, partially encrypted NSC files are still used.