Can Silverlight 3 open sockets?

Question

Can Silverlight 3 open sockets?

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If yes. What I need

• MSDN if there is any help with this.
• Open Source Libs / wrappers for encoding / decoding.
• Tutorials and blog articles on how to do this.

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  If not , I need where you got the information from (link to MSDN or another official SL resource).

Answer 1

Yes it is possible.

• MSDN:
  http://msdn.microsoft.com/en-us/library/cc296248(VS.95).aspx
  http://msdn.microsoft.com/en-us/library/cc645032(VS.95).aspx

• One of the easy libraries you might find useful:
  http://socketslight.codeplex.com

• A few tips for using:
  http://weblogs.asp.net/dwahlin/archive/2008/04/13/pushing-data-to-a-silverlight-client-with-sockets-part-ii.aspx
  http://www.silverlightshow.net/items/SocketsLight-Silverlight-Sockets-Framework.aspx

Answer 2

Yes, you can, but only within a certain range of ports (4502-4534), and only if you can also place the corresponding cross-domain access policy file on port 943 on the same server. You already have an MSDN link - here is an example application (for SL2, but should look similar in 3):

[Clicking Data for the Silverlight Socket Client Part 1] [1]

Look for Dan's blog for a “socket”, and you can find part 2 and how to create a policy server - SO will not let me post more than 1 link :(

Answer 3

Here's an MSDN article on working with sockets:

Work with sockets

Answer 4

Here's an article about using sockets in Silverlight, and here is a link to a structure to simplify this. Also a quick search on will lead to the use of results!