If you are trying to make a Pocket Pc application that connects to Web services
You will Probably Have Faced A lot of problems connecting to your WS
that is because you need to do the following
-you have to install Active sync 4.1 or later versions to make your emulator connected to the net
-you need to assign your pc static IP and you must be connected to real network
-When you add a Web Reference of your Web Service Instead of using “Local” in the WS Url write the static IP you made.

I don’t know if there is any better way to make it work … but is the only way made the emulator connect to WS with me…