To add a file transfer stream to a program for Windows Media Presenter

1. Open Windows Media Administrator.
2. In the Windows Media Administrator menu frame, click Multicast File Transfers.

   The Multicast File Transfers page appears.

3. Under Multicast File Broadcasts, click the name of the program to which you want to add the stream.
4. Click Streams, and then click New.
5. To give the stream a name and description, click the General tab.
   • In the Name box, type a name for the stream.
   • In the Description box, type a description for the stream.
6. To define the source and destination for the stream, click the Source/Destination tab.
7. Under Source, click File to transfer files and folders.
   • In the File box, type the path to the folder to which you exported the PowerPoint slides, or click Browse to locate and select a folder.
   • Under Destination, specify the location to which the files are transferred. This destination can be overridden by the client.
   • To specify multiple files in a folder for transfer, use a wild card, for example, C:\Content\*.jpg.
8. Under Destination Address:
   • In the IP Address box, type the destination IP address.
   • In the Port box, type the destination port.

   For a client to receive the multicast, the address and port you set for the stream must match the address and port specified by the control on the client's Web page. The control, Nsfile.ocx, sets the client's network card correctly.

   Multicast addresses range from 224.0.0.0 through 239.255.255.255. An address in the 239.*.*.* range is recommended for intranets. Avoid using addresses in the 224.*.*.* range. These are reserved for low-level protocols.

   IP port numbers range from 1 through 65535.

9. To specify the scope of the multicast, select a Time to Live option:
   • Click Local Network to limit the broadcast to the local network node.
   • Click Intranet to limit the broadcast to your site.
   • Click Internet to expand the scope of the broadcast to the Internet.
   • Click Other to type a custom value. Values can range from 1 through 255.
10. Under Destination, select a destination for the file transfer:
    • Click Directory, and type a directory name in the box to transfer the files and folders you have specified to that folder on the client. You can use environment variables to specify a location on the client. By default, files and subfolders are transferred to the folder specified by the client's %temp% environment variable.
    • Click File, and type a file name in the box to transfer a file and rename it on the client.
    • Click Base URL, and type a URL to transfer the files you have specified to the browser cache on the client. The URL you specify is used as a prefix for each of the files transferred.

    This option allows you to load the client's cache with files before they are needed. For example, if you are streaming an .asf file that includes URLs of graphics files, you can transfer them to the client before they are needed for display. Because they are already in the cache, the client can display them quickly.

11. Click the Advanced tab to set the bandwidth limit on the stream.

    For more information on the Advanced tab, see Using the file transfer Advanced tab.

Note