http://blogs.msdn.com/hegenderfer/archive/2009/07/07/spotlight-on-connection-manager.aspxWindows Mobile provides a very powerful, but often misunderstood, abstraction layer called Connection Manager. &#160; Connection Manager is responsible for managing all the possible networks a device may expose and transparently brokering them out toen-USCommunityServer 2.1 SP1 (Build: 61025.2)http://blogs.msdn.com/hegenderfer/archive/2009/07/07/spotlight-on-connection-manager.aspx#9825029Thu, 09 Jul 2009 01:56:03 GMT91d46819-8472-40ad-a661-2c78acb4018c:9825029hch<p>The use case I'm most interested in is the &quot;use any network but cellular&quot; one. &nbsp;That's what most of our users want. &nbsp;If the connection to the Internet is free then go ahead, otherwise stop.</p> <p>That would require enumerating the network guids and picking one that was not the cell data connection. &nbsp;I'm not aware of any way to do this in managed code using managed HTTP requests.</p> http://blogs.msdn.com/hegenderfer/archive/2009/07/07/spotlight-on-connection-manager.aspx#9828052Fri, 10 Jul 2009 05:33:14 GMT91d46819-8472-40ad-a661-2c78acb4018c:9828052ReedR<p>In many cases, CM kind of does this. Since DTPS and WiFi connections are prioritized over cellular, it will attempt to use the &quot;free&quot; connections over cellular if they are available. &nbsp;Outside of the standard logic to do that, you could have to use the lower level APIs to control which connection is used.</p> <p>-Reed</p>